Microscopic Evidence HAIR EVIDENCE FIBER ANALYSIS PATHOLOGY INTRO

Size: px
Start display at page:

Download "Microscopic Evidence HAIR EVIDENCE FIBER ANALYSIS PATHOLOGY INTRO"

Transcription

1 Microscopic Evidence HAIR EVIDENCE FIBER ANALYSIS PATHOLOGY INTRO

2 Microscopic Hair Analysis The first step in microscopic hair evaluation is to determine whether it is animal or human. Hair (and nails) is made up of a protein called keratin, color and trace minerals. A see through outer covering called the cuticle is composed of overlapping scales which can be seen under the microscope. The pattern and shape of the scales help to identify the type of animal or human from which the hair originated. Human and animal hairs differ on several physical characteristics including

3 Hair follicle= in dermis under skin Hair shaft= the part we can see

4 Hair Analysis consistent pigmentation of the hair in humans a regularly defined cellular core in animals a club shaped root in humans with variable shapes in animals animal coats contain several different types of hairs while humans do not

5 Once the hair is identified as human, human characteristics are determined which include: race body region from which the hair was found length color whether the hair was removed forcibly from the body damage due to crushing or burning chemical treatment such as dyes or bleach

6 Racial Variations Racial variations include the diameter of the hair shaft, density and distribution of pigment granules and shape of the hair in cross section. Body hair is differentiated based on length, shaft diameter, texture and condition of the tips. Comparing all of these characteristics allows a forensic technician to determine if hair found at a crime scene matches that of a suspect or victim.

7 Hair Shaft Layers 1. CUTICLE outside layers that has scales 2. Cortex middle layer keratin bundles 3. Medulla Central canal running through hair= inner layer has 3 basic patterns

8 OVERLAPPING SCALES KERATINIZED FLATTENED CUTICLE Most resistant to chemical decomposition is the cuticle The SCALE PATTERN is most important in identifying type of species.

9 MEDULLA CENTRAL CANAL PATTERNS CONTINUOUS INTERRUPTED FRAGMENTED SHAPE

10 MEDULLARY INDEX MEDULLA/HAIR SHAFT DIAMETERS HUMANS <1/3

11 HAIR COMPARISON CAT DOG ORANGUTAN RAT

12

13 Hair Samples

14 What is hair used for? Unless it is burnt, hair is extremely durable. It remains identifiable on bodies in an advanced state of decomposition or attached to a murder weapon long after the crime is committed. Hair is composed of protein substances, chiefly keratin, and head hair grows at an average weekly rate of about 2.5mm, the beard growing faster and body hair more slowly. Growth ceases at death, but as the skin shrinks the hair, especially the beard, becomes more prominent, giving rise to the murder myth that hair grows after death. The absorbent property of hair makes its examination important in cases of arsenic poisoning. Hair picks up the poisons from the bloodstream, and it is possible to work out the approximate strength and frequency of the dosage by analysis.

15 What type of hair is CASHMERE made from?

16 What type of hair is CASHMERE made from? GOAT There is a breed of goat called cashmere. Most raw cashmere comes from China.

17 FIBER ANALYSIS Cotton Wool Linen Nylon Silk Rayon

18 COTTON Cotton is the most widely used plant fiber. Cotton fibers are the hairs found on the seeds of the cotton plant. If possible, obtain a cotton boll on its stem. Examined under a microscope, the cotton fibers (use a few strands of absorbent cotton) will look like a flattened, irregular, twisted ribbon. Top three distributors: China, India, USA

19 WOOL Wool is the most commonly used animal fiber. The fiber is obtained from the soft, hairy covering of sheep and sometimes goats. Under the microscope, the wool fiber looks like a long cylinder with scales on it. The fiber is very curly and springy. Cloth made from wool includes cashmere, camel's hair, alpaca, covert cloth, flannel, gabardine, mohair, serge, tweed and worsted.

20 LINEN Another common plant fiber is linen, which comes from the flax plant. This fiber is long, lustrous, and smooth. Under the microscope it looks like bamboo can, with jointed cells and split, tapered ends. Point out that linen is often used to make handkerchiefs, tablecloths, napkins, summer clothing, pants and blouses.

21 SILK Silk, another common animal fiber, was once quite popular, but has been replaced to a great extent by such synthetic fibers as Nylon, Orlon, and Dacron. Silk is made by the mulberry silk worm when spinning its cocoon. Under the microscope the silk fiber appears as a thin, long, smooth and lustrous cylinder. Cloths made from silk include brocade, brocatelle, chiffon, crepe, velvet, satin, taffeta, tulle, and falle. Silkworms (China) spin silk like spiders spin a web!

22 RAYON Rayon is one of the first successful artificial fibers. It is made from cellulose. When manufactured, the rayon fibers resemble silk. Under the microscope, the rayon fiber looks like a smooth, lustrous cylinder. Rayon can be made into cloth that is hard to distinguish from silk, cotton, linen, or wool. Celanese is one form of rayon.

23 ASBESTOS Asbestos is the name given to a group of minerals that occur naturally as masses of strong, flexible fibers that can be separated into thin threads and woven to make asbestos cloth. These fibers are not affected by heat or chemicals and do not conduct electricity. Asbestos cloth was used in fireproof theater curtains and protective suits for use by fire fighters. It was also used as a building material, brake pads and a range of other products.

24 ASBESTOS It is now know that the fibers of asbestos are a dangerous irritant. Even exposure to small amounts of asbestos dust can lead to a range of illnesses such as asbestosis, a serious lung inflammation caused by asbestos exposure, and Mesothelioma a cancer of the chest and abdomen. Although asbestos products are rarely made these days, they can still be found, particularly in old buildings.

25 Synthetic Fibers Today there is a wide variety of synthetic fibers; all have trade names such as Nylon, Orlon, Dacron, Vinyon, Aralac, Acrilan, Velon, Dynel, Banlon and Lycra. Like rayon, these fibres resemble silk, and under the microscope look like smooth, lustrous cylinders. Synthetic fibers are easily identified because of their uniform thickness (the thickness of natural fibers varies). Synthetic fibers area made into fabrics that have special properties..

26 Synthetic Fibers Glass and asbestos can also be spun into thread and woven into fabrics. Glass fibers are made by stretching melted glass into fine filaments, which are spun into thread for weaving into cloth. Lightweight glass fibers are used to make long lasting windows curtains, drapes, and lamp shades. Heavier glass fabrics are used to make fireproof theater and school curtains.

27 FORENSIC PATHOLOGY A branch of pathology concerned with determining cause of death by observing tissue, organs, bodily fluids and whole bodies.

28 Sperm Cells Sperm cells move by means of flagella

29 Terms to understand: CANCER the uncontrolled growth of abnormal cells in the body. Carcinoma = cancer Malignant tumor = cancer Benign tumor= not cancerous (moles/ fibroids) Limited growth (does not spread) Does not affect surrounding area Does not metastasize Some types of benign tumors can cause negative health effects or can turn into malignant tumors Metastasis the spread of a disease from one organ or part to another non adjacent organ or part.

30 Example of Metastasis Primary cancer in pancreas which has caused secondary liver tumors

31 CELLS:

32 Normal cells are uniform and arranged in tissues in an orderly manner. When you poke and prod normal tissue, it s soft.

33 Paraganglioma shows polygonal chief cells enclosed by fibrous elongated cells OR Head/Neck Cancer Cells

34 Tumor cells have large, irregular nuclei, a small cytoplasm and large variations in size and shape. The cells are arranged in a disorganized fashion. Ex: Brain Tumor

35 A renal cell carcinoma stained slide

36 Lung Disease Pathology of lung showing centrilobular emphysema characteristic of smoking. Close up of fixed, cut surface shows multiple cavities (aveoli) lined by heavy black carbon deposits.

37 Slides to examine

38 Sketching the Evidence:

-hairs grows out of a follicle (has cells with DNA for analysis) - hair extends from here (in the follicle) has cells with DNA

-hairs grows out of a follicle (has cells with DNA for analysis) - hair extends from here (in the follicle) has cells with DNA Name _ period Unit 4: Hair and Fibers Anatomy and Use in Forensic Science Objectives You will understand that: Hair is. Hair can be used to back up. Hair absorbs and adsorbs substances both from within

More information

Copyright 2013 Crosscutting Concepts, LLC. All Rights Reserved.

Copyright 2013 Crosscutting Concepts, LLC. All Rights Reserved. Trace Evidence Trace evidence results from the transfer of material from one place to another. Examples include: fibers glass fragments paint hair Trace Evidence Locard s principle: Every contact leaves

More information

Forensic Science. Presentation developed by T. Trimpe

Forensic Science. Presentation developed by T. Trimpe Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Trimpe 2006 http://sciencespot.net/ Biology of Hair Hair is composed of the protein

More information

Forensic Science. Presentation developed by T. Trimpe 2006

Forensic Science. Presentation developed by T. Trimpe 2006 Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Trimpe 2006 http://sciencespot.net/ Biology of Hair Hair is composed of the protein

More information

Biology of Hair. Hair is composed of the protein keratin, which is also the primary component of finger and toe nails.

Biology of Hair. Hair is composed of the protein keratin, which is also the primary component of finger and toe nails. Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Trimpe 2006 http://sciencespot.net/ Biology of Hair Hair is composed of the protein

More information

Hair. Chapter 5: For three days after death, hair and fingernails continue to grow but phone calls taper off.

Hair. Chapter 5: For three days after death, hair and fingernails continue to grow but phone calls taper off. Chapter 5: Hair For three days after death, hair and fingernails continue to grow but phone calls taper off. Johnny Carson Comedian and television host http://kids.niehs.nih.gov/illusion/illus ions.htm

More information

Locard s Exchange Principle

Locard s Exchange Principle Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Tomm 2006 http://sciencespot.net/ Locard s Exchange Principle "Every Contact Leaves

More information

Hair. Oleg_Mit/Shutterstock.com

Hair. Oleg_Mit/Shutterstock.com Hair Oleg_Mit/Shutterstock.com 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the

More information

Hair as Evidence Hair is helpful as evidence for 4 reasons 1) Wide range of classifications 2) Persistent (gets stuck in clothing) 3) Resists

Hair as Evidence Hair is helpful as evidence for 4 reasons 1) Wide range of classifications 2) Persistent (gets stuck in clothing) 3) Resists Hair Human hair is one of the most frequently found pieces of evidence at the scene of a violent crime. It can provide a link between the criminal and the crime Hair as Evidence Hair is helpful as evidence

More information

Objectives. You will understand that: Hair

Objectives. You will understand that: Hair Hair 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the body and from the external

More information

Biology of Hair. Hair is composed of the protein, which is also the primary component of finger and toe.

Biology of Hair. Hair is composed of the protein, which is also the primary component of finger and toe. Prof. J. Dodd Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Biology of Hair Hair is composed of the protein, which is also the primary component of finger and

More information

Unit 3 Hair as Evidence

Unit 3 Hair as Evidence Unit 3 Hair as Evidence A. Hair as evidence a. Human hair is one of the most frequently pieces of evidence at the scene of a violent crime. Unfortunately, hair is not the best type of physical evidence

More information

found identity rule out corroborate

found identity rule out corroborate Hair as Evidence Human hair is one of the most frequently found pieces of evidence at the scene of a violent crime. Unfortunately, hair is not the best type of physical evidence for establishing identity.

More information

Forensics 1: Unit 3: Trace Evidence: Hair

Forensics 1: Unit 3: Trace Evidence: Hair Forensics 1: Unit 3: Trace Evidence: Hair -Encountered as physical evidence in a wide variety of crimes. -Not yet possible to individualize a human hair to a single head or body. -When properly collected

More information

Study Guide-Forensic Science Chapter 5- Hair Name:

Study Guide-Forensic Science Chapter 5- Hair Name: 1. Is hair class or individual evidence? Class 2. Does hair only absorb substances from inside the body? _No, Inside and out_ 3. From hair, one can determine the following: _Human or animal Race Origin

More information

Objectives. You will understand that: Hair

Objectives. You will understand that: Hair Hair 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the body and from the external

More information

Objectives. You will understand that: Hair

Objectives. You will understand that: Hair Hair 1 Objectives You will understand that: Hair is class evidence. Hair can be used to back up circumstantial evidence. Hair absorbs and adsorbs substances both from within the body and from the external

More information

Medical Forensics Notes

Medical Forensics Notes Medical Forensics Notes The Biology of Hair Hair is composed of the protein keratin, which is also the primary component of finger and toe nails. The Biology of Hair Hair is produced from a structure called

More information

Trace evidence is a term for small, often microscopic material. This evidence can be a significant part of an investigation. It includes an endless

Trace evidence is a term for small, often microscopic material. This evidence can be a significant part of an investigation. It includes an endless Trace Evidence Trace evidence is a term for small, often microscopic material. This evidence can be a significant part of an investigation. It includes an endless variety of materials but the trace evidence

More information

Morphology and Structure of Hair

Morphology and Structure of Hair Hairs & Fibers Morphology and Structure of Hair Morphology of Hair An appendage of the skin that grows out of an organ known as the hair follicle. Extends from its root or bulb embedded in the follicle,

More information

Trace Evidence: Hair. Forensic Science

Trace Evidence: Hair. Forensic Science Trace Evidence: Hair Forensic Science Hair Hair is A slender threadlike outgrowth from the follicles of the skin of mammals Found all over our bodies Head Face Chest Limbs (arms and legs) Pubic region

More information

Forensic Science

Forensic Science http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Forensic Science 1 Central Focus Students will understand how forensic scientists use observational, physical, chemical, and biological

More information

Microscopic Examination of Trace Evidence

Microscopic Examination of Trace Evidence Microscopic Examination of Trace Evidence When a forensic scientist receives hair and/or fiber evidence from a crime scene they must determine the following things: Is it a hair or is it a fiber? If a

More information

Forensic Value of Hair

Forensic Value of Hair Forensic Value of Hair Hair is class evidence morphorlogy (how it looks), index (how thick the medula is), color Mitochondrial DNA from shaft. All mitochondria comes from egg only, not sperm. So ONLY maternal

More information

Trace Evidence: Hair. Forensic Science

Trace Evidence: Hair. Forensic Science Trace Evidence: Hair Forensic Science Hair Hair is A slender threadlike outgrowth from the follicles of the skin of mammals Found all over our bodies Head Face Chest Limbs (arms and legs) Pubic region

More information

HAIRS. Morphology of Hair dermis 5/5/2017. Chapter 8 HAIR, FIBERS, AND PAINT. cortex medulla Sebaceous gland

HAIRS. Morphology of Hair dermis 5/5/2017. Chapter 8 HAIR, FIBERS, AND PAINT. cortex medulla Sebaceous gland Chapter 8 HAIR, FIBERS, AND PAINT HAIRS 1 2 Introduction Hair is encountered as physical evidence in a wide variety of crimes. Although it is not yet possible to individualize a human hair to any single

More information

Hair Microscopy The comparison microscope is integral to trace evidence examinations. Two matching hairs identified with the comparison microscope

Hair Microscopy The comparison microscope is integral to trace evidence examinations. Two matching hairs identified with the comparison microscope Hairs, which are composed primarily of the protein keratin, can be defined as slender outgrowths of the skin of mammals. Each species of animal possesses hair with characteristic length, color, shape,

More information

Trace Evidence: Hair. Forensic Science

Trace Evidence: Hair. Forensic Science Trace Evidence: Hair Forensic Science Hair is A slender threadlike outgrowth from the follicles of the skin of mammals Found all over our bodies Head Eyebrows and Eyelashes Beard and Mustache Underarm

More information

ANALYSIS OF FINGERPRINTS, LIPSTICK 2 ND HAIR

ANALYSIS OF FINGERPRINTS, LIPSTICK 2 ND HAIR ANALYSIS OF FINGERPRINTS, LIPSTICK 2 ND HAIR LAB FORENSICS.3 From Sourcebook, National Science Foundation, 1997 INTRODUCTION PART A. OBTAINING A FINGERPRINT Black ink stamp pad Tissue paper 4 x 4 cm Card

More information

Chapter 3 The Study of Hair By the end of this chapter you will be able to:

Chapter 3 The Study of Hair By the end of this chapter you will be able to: Chapter 3 The Study of Hair By the end of this chapter you will be able to: identify the various parts of a hair describe variations in the structure of the medulla, cortex, and cuticle distinguish between

More information

FORENSIC SCIENCE. Trace Evidence

FORENSIC SCIENCE. Trace Evidence FORENSIC SCIENCE Trace Evidence 1 Introduction Trace Evidence--any small pieces of material, man-made or naturally occurring. Trace evidence (in the absence of DNA) is considered class evidence. As early

More information

Locard s Exchange Principle

Locard s Exchange Principle Glue the paper on page 19 under the notes FAF Right http://media.popularmechanics.com/images/pmx0706forensicshairsmall.jpg Presentation developed by T. Tomm 2006 http://sciencespot.net/ Locard s Exchange

More information

Authors Jeanette Jolley and John Powrie

Authors Jeanette Jolley and John Powrie Authors Jeanette Jolley and John Powrie Credits Associate Editor Josh Roby Assistant Editor Leslie Huber, M.A. Editorial Director Dona Herweck Rice Editor-in-Chief Sharon Coan, M.S.Ed. Editorial Manager

More information

TRAINING LAB HAIR AS EVIDENCE: PART 1 HUMAN HAIR NAME

TRAINING LAB HAIR AS EVIDENCE: PART 1 HUMAN HAIR NAME TRAINING LAB HAIR AS EVIDENCE: PART 1 HUMAN HAIR NAME Background: You loose about 50 to 100 hairs a day from the approximately 100,000 total hairs present on your head. Don t worry, however, because there

More information

1 of 8 11/3/14 2:01 PM

1 of 8 11/3/14 2:01 PM Home About Us Laboratory Services Forensic Science Communications Back Issues July 2000 Hairs, Fibers, Crime, and Evidence, Part 1, by Deedrick... Part 1: Hair Evidence July 2000 - Volume 2 - Number 3

More information

Fiber Evidence. What is a fiber? Fiber transfer 2/21/2007

Fiber Evidence. What is a fiber? Fiber transfer 2/21/2007 Fiber Evidence What is a fiber? A fiber is the smallest unit of a textile material that has a length many times greater than its diameter. Fibers can occur naturally as plant and animal fibers, but they

More information

1 of 5 11/3/14 2:03 PM

1 of 5 11/3/14 2:03 PM Home About Us Laboratory Services Forensic Science Communications Back Issues July 2000 Hairs, Fibers, Crime, and Evidence, Part 2, by Deedrick... Hairs, Fibers, Crime, and Evidence Part 2: Fiber Evidence

More information

Hair can be defined as a slender, thread like outgrowth from a follicle in the skin of mammals. Composed mainly of keratin, it has three

Hair can be defined as a slender, thread like outgrowth from a follicle in the skin of mammals. Composed mainly of keratin, it has three 1 2 3 Hair can be defined as a slender, thread like outgrowth from a follicle in the skin of mammals. Composed mainly of keratin, it has three morphological regions the cuticle, medulla, and cortex. 4

More information

HAIR SCIENCE AND BIOLOGY

HAIR SCIENCE AND BIOLOGY HAIR SCIENCE AND BIOLOGY Your hair is composed of keratin, a strong fibrous protein, and is built from cells similar to those of your skin. The average number of hairs on the human scalp is 120,000, although

More information

You can usually divide the hair into three different parts: the cuticle, or the cover cells, which is the outer hard layer of the hair.

You can usually divide the hair into three different parts: the cuticle, or the cover cells, which is the outer hard layer of the hair. Super Wash anatomy Hair consists mostly of a protein called a-keratin. Keratin or horn substance, is a sulfur-containing protein and belongs to a group of fibrous proteins that form the basis of hair and

More information

TRAINING LAB HAIR AS EVIDENCE: PART 2 ANIMAL HAIR NAME

TRAINING LAB HAIR AS EVIDENCE: PART 2 ANIMAL HAIR NAME TRAINING LAB HAIR AS EVIDENCE: PART 2 ANIMAL HAIR NAME Background: Animal hair can be just as important in helping to solve a crime as human hair. Example: a criminal breaks in to a house and steals some

More information

Trace Evidence: Hair. Forensic Science

Trace Evidence: Hair. Forensic Science Trace Evidence: Hair Forensic Science Human & Animal Hair 3 Main differences Pigment Medulla Scale Structure Human Hair remains constant in its color and pigmentation throughout the length of the shaft

More information

NATURAL OR SYNTHETIC:

NATURAL OR SYNTHETIC: Cotton Comfortable Soft Absorbent Machine- washable, dry- cleanable Good strength Drapes well Easy to handle and sew Apparel - shirts, dresses, swimwear, suits, jackets, skirts, pants, sweaters. Home Fashions

More information

Trace Evidence: Hair. Forensic Science

Trace Evidence: Hair. Forensic Science Trace Evidence: Hair Forensic Science Copyright and Terms of Service Copyright Texas Education Agency, 2011. These materials are copyrighted and trademarked as the property of the Texas Education Agency

More information

Hair. Name Period. Fill in the blanks and answer the following questions based on the powerpoint and your textbook.

Hair. Name Period. Fill in the blanks and answer the following questions based on the powerpoint and your textbook. Hair Name Period Hair is important as trace evidence in criminal investigations. Chapter 3 in your textbook explains why we study hair, and how we study it. Your job is to become an expert on both! Fill

More information

ACTIVITY 3-1 TRACE EVIDENCE: HAIR

ACTIVITY 3-1 TRACE EVIDENCE: HAIR ACTIVITY 3-1 TRACE EVIDENCE: HAIR Objectives: By the end of this activity, you will be able to: 1. Describe the external structure of hair. 2. Distinguish between different hair samples based on color,

More information

Crime Busters. Safety. What To Bring. What To Bring. Prep the Team. The Story Arc

Crime Busters. Safety. What To Bring. What To Bring. Prep the Team. The Story Arc Safety Crime Busters How to Be Successful at This Event Presented By Scott A Holdren Regional Director State Event Supervisor National Event Supervisor Students must wear Closed-toed shoes ANSI Z87 indirect

More information

#7. Animal hair can be distinguished from human hair because animal hair

#7. Animal hair can be distinguished from human hair because animal hair High School Forensics Test Division C Mentor 2016 Team#_ Score: _ Names of Participants:_ Multiple Choice and True/False: Hair Analysis True/False A is true; B is false. #1. The shaft of the hair is considered

More information

4L1 *fr4t17? JKi3ic,4. The Function and. Structure of Hair

4L1 *fr4t17? JKi3ic,4. The Function and. Structure of Hair excited at the moment something s happening like people do. t sits there and wafts to be --Herbert Leon MacDoneli, The Evidence NeverLies inner medulla, the cortex, and the outer cuticle. A hair has three

More information

Activity 27 WHOSE HAIR IS IT?

Activity 27 WHOSE HAIR IS IT? Activity 27 WHOSE HAIR IS IT? STUDY QUESTION: THE ACTIVITY: CURRICULUM FIT: AGRICULTURE CONCEPTS: What differences are there between human and animal hair? How do forensic science laboratories use this

More information

SAMPLE COPY SAMPLE COPY SAMPLE COPY

SAMPLE COPY SAMPLE COPY SAMPLE COPY The Integumentary and Skeletal Systems EXPERIMENT 3.1: A CLOSER LOOK AT THE SKIN Supplies: Microscope Prepared slide: human skin (not the one with follicles or hairs) Purpose: To examine the dermis and

More information

Chapter 21 Haircoloring

Chapter 21 Haircoloring Chapter 21 Haircoloring MULTIPLE CHOICE 1. Clients who have their hair colored usually visit the salon every weeks. a. two to four b. three to six c. four to eight d. three to twelve ANS: D PTS: 1 REF:

More information

Coat Colour. Lakeland Terrier

Coat Colour. Lakeland Terrier A Discussion of Coat Colour Genetics in the Lakeland Terrier Chapter 2 Dog Hair By Ron Punter Page Representation of section of an active hair follicle Topcoat hair The surface Epidermis is confluent with

More information

Trace Evidence: Hair. Forensic Science

Trace Evidence: Hair. Forensic Science Trace Evidence: Hair Forensic Science Copyright and Terms of Service Copyright Texas Education Agency, 2011. These materials are copyrighted and trademarked as the property of the Texas Education Agency

More information

T R E A T Y O U R H A I R W I T H L O V E HAIR LOVE. Defineing The New you W W W. G E N E S I S H A I R C A R E. O R G

T R E A T Y O U R H A I R W I T H L O V E HAIR LOVE. Defineing The New you W W W. G E N E S I S H A I R C A R E. O R G T R E A T Y O U R H A I R W I T H L O V E HAIR LOVE Defineing The New you W W W. G E N E S I S H A I R C A R E. O R G Greeting, I appreciate you reading and discovering the Love Your Hair Report. My name

More information

NEUTRON ACTIVATION ANALYSIS OF HAIR

NEUTRON ACTIVATION ANALYSIS OF HAIR Chapter Overview Hair has been used in forensic analysis since the late 19th century. Hair regulates body temperature, reduces friction, protects the body from light, and is also a sense organ. It is made

More information

Integument. Sweat glands. Oil glands. Hair Nails. Sudoriferous glands. Sebaceous glands

Integument. Sweat glands. Oil glands. Hair Nails. Sudoriferous glands. Sebaceous glands The Hypodermis Aka. Subcutaneous or superficial fascia Composed of Adipose Not really a part of the integument, but it is important in stabilizing the position of the skin in relation to underlying tissue

More information

Microanatomical observations of hair in domestic animals: A comparative study

Microanatomical observations of hair in domestic animals: A comparative study 2018; 6(5): 1925-1929 E-ISSN: 2320-7078 P-ISSN: 2349-6800 JEZS 2018; 6(5): 1925-1929 2018 JEZS Received: 18-07-2018 Accepted: 19-08-2018 S Senthilkumar PG Scholar, Dept. of Veterinary Anatomy, Madras veterinary

More information

The MiniOne TM Reagent Kit: Crime Scene Invesitigation

The MiniOne TM Reagent Kit: Crime Scene Invesitigation The MiniOne TM Reagent Kit: Crime Scene Invesitigation Cat#: M3005 2 Crime Scene Investigation Reagent Kit Components Other Required Materials Laboratory Safety Table of Contents Page 3 3 3 Experiment

More information

The Study of Hair CHAPTER NEUTRON ACTIVATION ANALYSIS OF HAIR CHAPTER

The Study of Hair CHAPTER NEUTRON ACTIVATION ANALYSIS OF HAIR CHAPTER CHAPTER 1 2 CHAPTER The Study of Hair 4 5 6 7 8 9 10 11 12 1 14 15 16 17 NEUTRON ACTIVATION ANALYSIS OF HAIR In 1958, the body of 16-year-old Gaetane Bouchard was discovered in a gravel pit near her home

More information

First commercially available synthetic fiber. Dominates hosiery, carpet, and activewear industries

First commercially available synthetic fiber. Dominates hosiery, carpet, and activewear industries Nylon First commercially available synthetic fiber Polyamide, ISO equivalent of nylon Nylon 6 and nylon 6,6 - most commonly used Derived from petroleum products o Limited production of bio-based nylon

More information

Section I 10 marks (pages 2 4) Attempt Questions 1 10 Allow about 15 minutes for this section

Section I 10 marks (pages 2 4) Attempt Questions 1 10 Allow about 15 minutes for this section 2017 HIGHER SCHOOL CERTIFICATE EXAMINATION Textiles and Design General Instructions Reading time 5 minutes Working time 1 1 2 hours Write using black pen Total marks: 50 Section I 10 marks (pages 2 4)

More information

PLEASE DO NOW #4 PLEASE DO NOW #5

PLEASE DO NOW #4 PLEASE DO NOW #5 PLEASE DO NOW #4 How many hairs does the average person have on his/her head? a) All b) Red hair c) Blond hair d) Brown hair ~100,000 ~90,000 ~140,000 Between 90,000 to 140,000 PLEASE DO NOW #5 Why do

More information

Colour 2 Advanced. COLOUR 1 INTRODUCTION TO COLOUR Colour

Colour 2 Advanced. COLOUR 1 INTRODUCTION TO COLOUR Colour Colour 2 Advanced COLOUR 1 INTRODUCTION TO COLOUR Colour WORKSHOP CONTENT Hair Science Colour Chart Tone and Reflect High-lift and Bleaching Application Techniques Colour Scenarios HAIR SCIENCE The three

More information

Surgical dressings. Dr.N.Damodharan Professor and head Department of pharmaceutics SRM college of pharmacy

Surgical dressings. Dr.N.Damodharan Professor and head Department of pharmaceutics SRM college of pharmacy Surgical dressings Dr.N.Damodharan Professor and head Department of pharmaceutics SRM college of pharmacy Surgical dressings & sutures Composed of fibres A solid characterized by Flexibility Fineness High

More information

Chapter 18 Haircoloring and Lightening

Chapter 18 Haircoloring and Lightening Chapter 18 Haircoloring and Lightening MULTIPLE CHOICE 1. Which hair characteristic is an indication of the strength of the cortex, including cross-bonds and melanin molecules? a. Texture. c. Porosity.

More information

midterm124 January 24, 2014

midterm124 January 24, 2014 1/24 Mid-term Review You have 10 minutes to walk around and check your answers to the mid-term review and then ask me any questions (the answers will also be posted on my Frontier website) Then get a whiteboard,

More information

TRICHOLOGY. Copyright 2013 SAP

TRICHOLOGY. Copyright 2013 SAP TRICHOLOGY Copyright 2013 SAP TRICHOLOGY The scientific study of hair, its diseases, and care Hair is part of integument. Healthy hair requires a healthy diet. Proper nutrients are required for healthy

More information

Hair extensions Specification

Hair extensions Specification KENYA STANDARD DKS 2173: 2008 Hair extensions Specification PUBLIC REVIEW DRAFT Second Edition 2018 KENYA BUREAU OF STANDARDS KENYA STANDARD DKS 2173:2008 TECHNICAL COMMITTEE REPRESENTATION The following

More information

Absorbents. Absorbents

Absorbents. Absorbents Robinson Healthcare is the UK s leading manufacturer of high quality medical absorbents and has the only volume cotton wool manufacturing plant in the UK. Excellence in medical absorbents can be traced

More information

Fashion Curriculum Portfolio

Fashion Curriculum Portfolio Fashion Curriculum Portfolio Becky Parkinson Vogue Cover April 1950 Contents: Fashion Portfolio Explanation Mini Copy of Fashion Portfolio, Student Sample (Michelle Wang) Assignment Details included below

More information

Shreeji Textiles C-18/4, ROAD NO - 14, HOJIWALA INDUSTRIAL ESTATE, SACHIN,. Surat Gujarat India.

Shreeji Textiles C-18/4, ROAD NO - 14, HOJIWALA INDUSTRIAL ESTATE, SACHIN,. Surat Gujarat India. Shreeji Textiles C-18/4, ROAD NO - 14, HOJIWALA INDUSTRIAL ESTATE, SACHIN,. Surat 394230. Gujarat India. 91-8469597576 info@shreejitextiles.com http://www.shreejitextiles.com PU Coated Fabric Urethane

More information

"RIGHT-TO-KNOW FOR BUILDING AND CONSTRUCTION COMPANIES"

RIGHT-TO-KNOW FOR BUILDING AND CONSTRUCTION COMPANIES MAJOR PROGRAM POINTS "RIGHT-TO-KNOW FOR BUILDING AND CONSTRUCTION COMPANIES" Part of the "CONSTRUCTION SAFETY KIT" Series Quality Safety and Health Products, for Today...and Tomorrow OUTLINE OF MAJOR PROGRAM

More information

: An organ - two or more tissues functioning

: An organ - two or more tissues functioning 2 INTEGUMENTARY SYSTEM - CHAPTER 5 : An organ - two or more tissues functioning sq. m, 9-11 lbs, 7% of body weight mm thick Two layers & A.Epidermis protective layer w/o B.Dermis tissue fibrous & passes

More information

Objective: You will be able to describe the structure of hair.

Objective: You will be able to describe the structure of hair. Objective: Yu will be able t describe the structure f hair. 1 Frensic Science: Fundamentals & Investigatins, Chapter 3 Apprximately 100 head hairs are shed by an individual each day. These hairs are shed

More information

FORENSIC TRICHOLOGY AND ITS IMPORTANCE IN CRIME CASES.

FORENSIC TRICHOLOGY AND ITS IMPORTANCE IN CRIME CASES. FORENSIC TRICHOLOGY AND ITS IMPORTANCE IN CRIME CASES. V. Vinayak 1 *,Chitralekha 2, S.Kaur 3,. A. Kadyan 4 and A.Rai 5 1 Senior Scientific Officer(Biology) 2 Scientific Assistant(Biology) 3 Senior Scientific

More information

Safety Data Sheet TREO - Vitreous Silicate Needled Blanket Insulation

Safety Data Sheet TREO - Vitreous Silicate Needled Blanket Insulation Section 1 Chemical Product and Company Identification Product Name: TREO, TRI-L, Treo+ Chemical Name: Vitreous Silicate Manufacturer Information: 173 Rainbow Circle Independence, VA 24348 (276) 773-3114

More information

BUSNEL GARMENT CARE GENERAL MAINTENANCE RECOMMENDATIONS:

BUSNEL GARMENT CARE GENERAL MAINTENANCE RECOMMENDATIONS: BUSNEL GARMENT CARE Busnel creates high quality garments from the most carefully chosen combinations of materials. We started using high quality wool in 1920 and all of our patterns are unique and designed

More information

ANSWER AS MANY QUESTIONS WITHOUT AID; THEN USE YOUR TEXTBOOK OR NOTES TO COMPLETE THE QUESTIONS. ANSWER IN DARK FONT; NOT BLACK

ANSWER AS MANY QUESTIONS WITHOUT AID; THEN USE YOUR TEXTBOOK OR NOTES TO COMPLETE THE QUESTIONS. ANSWER IN DARK FONT; NOT BLACK Hello everyone! This is today s lesson. STUDY FOR STATE BOARD WRITTEN EXAM POSSIBLE QUESTIONS ANSWER AS MANY QUESTIONS WITHOUT AID; THEN USE YOUR TEXTBOOK OR NOTES TO COMPLETE THE QUESTIONS. ANSWER IN

More information

Section 6. Labelling

Section 6. Labelling Section 6 Labelling Labelling Requirements Version 2.1 March 2015 S6-2 6.1.1 General Labelling Refer to AS/NZS 2392:1999 Textiles Labelling of clothing, household textiles and furnishings for a guide to

More information

Elastomeric Fibers. Most elastomeric fibers stretch over 400% and return back to their original size. Rubber o Natural rubber o Synthetic rubber

Elastomeric Fibers. Most elastomeric fibers stretch over 400% and return back to their original size. Rubber o Natural rubber o Synthetic rubber Elastomeric Fibers Most elastomeric fibers stretch over 400% and return back to their original size Rubber o Natural rubber o Synthetic rubber Spandex o Most commonly used elastomer o Elastane - ISO equivalent

More information

Regardless of the animal species, the skin is made up of three layers: the epidermis, the dermis, the subcutaneous tissue.

Regardless of the animal species, the skin is made up of three layers: the epidermis, the dermis, the subcutaneous tissue. Hides and skins, the raw material 29 Epidermis GRAIN Dermis FLESH Subcutaneous tissues > Cut of a mammal hide HIDE / SKIN STRUCTURE It is composed of: an outer side called the grain side, including the

More information

Shopping and Us (1) Chapter 1

Shopping and Us (1) Chapter 1 Shopping and Us (1) Did you know...? Read the following statements. Mark each one as Positive (+), Negative ( ) or Neutral (n). Then, circle the facts that surprised you. Compare your responses with your

More information

HOW IS IT DIFFERENT? WHAT IS ACTISEA H2O for hair? HOW DO I USE IT? WHAT DOES IT DO? WHAT IS IT FOR?

HOW IS IT DIFFERENT? WHAT IS ACTISEA H2O for hair? HOW DO I USE IT? WHAT DOES IT DO? WHAT IS IT FOR? TM CTFA/INCI Name: Aloe Barbadensis Leaf Juice Algae Extract Camellia Oleifera (Japanese Green Tea) Leaf Extract Glycerin CAS Numbers: 85507-69-3, 94349-62-9, 92128-82-0, 94333-93-4, 56-81-5 EINECS/ELINCS

More information

CBI Fashion Forecast. Fall Winter and Spring Summer 2009 Preview. Fall Winter Preview Fashion Forecast Spring Summer 2009

CBI Fashion Forecast. Fall Winter and Spring Summer 2009 Preview. Fall Winter Preview Fashion Forecast Spring Summer 2009 CBI Fashion Forecast Fall Winter 2008-09 and Spring Summer 2009 Preview In the following pages we bring to you the fashion forecast and trends for Fall-winter 2008-09 and Spring Summer 2009 Preview prepared

More information

l! i.lffjj laboratory Investigation 5)

l! i.lffjj laboratory Investigation 5) Name Class--------------- Date l! i.lffjj laboratory Investigation 5) Splitting Hairs Problem Can you identify which hair samples are human? Background There was a break-in at a local animal clinic. People

More information

AN INVESTIGATION OF LINTING AND FLUFFING OF OFFSET NEWSPRINT. ;, l' : a Progress Report MEMBERS OF GROUP PROJECT Report Three.

AN INVESTIGATION OF LINTING AND FLUFFING OF OFFSET NEWSPRINT. ;, l' : a Progress Report MEMBERS OF GROUP PROJECT Report Three. ;, l' : Institute of Paper Science and Technology. ' i,'',, AN INVESTIGATION OF LINTING AND FLUFFING OF OFFSET NEWSPRINT, Project 2979 : Report Three a Progress Report : r ''. ' ' " to MEMBERS OF GROUP

More information

Why is pretreatment needed

Why is pretreatment needed Pretreatments Why is pretreatment needed As a whole this process consist of desizing process, scouring and bleaching. Pretreatment process basically aim to removal all impurities found on fiber ( especially

More information

Chapter 11 Properties of the Hair and Scalp

Chapter 11 Properties of the Hair and Scalp Chapter 11 Properties of the Hair and Scalp MULTIPLE CHOICE 1. What term refers to the scientific study of hair and its diseases and care? a. Trichology b. Cosmetology c. Selenology d. Cartology ANS: A

More information

Hair Analysis. By the end of this unit you will be able to:

Hair Analysis. By the end of this unit you will be able to: 1 All rights Reserved Cengage/NGL/Suth-Western 2016 Hair Analysis By the end f this unit yu will be able t: 1 Identify the varius parts f a hair. 2 Describe variatins in the structure f the medulla, crtex,

More information

Workplace Hazardous Materials Information System (WHMIS) Self Learning Package

Workplace Hazardous Materials Information System (WHMIS) Self Learning Package Saskatchewan Health Authority OCCUPATIONAL HEALTH & SAFETY Workplace Hazardous Materials Information System (WHMIS) 1988 Self Learning Package What is WHMIS? The Workplace Hazardous Materials Information

More information

Subject: EVS Month: September Class: II A & B SEASONS AND CLOTHES

Subject: EVS Month: September Class: II A & B SEASONS AND CLOTHES Subject: EVS Month: September Class: II A & B SEASONS AND CLOTHES Seasons We have season because the earth tilts. There are 4 seasons in our country. They are 1. Summer season 2. Rainy season 3. Winter

More information

Fabric for Fashion / Clive Hallett & Amanda Johnston

Fabric for Fashion / Clive Hallett & Amanda Johnston Activities Introduction: Introducing colour Activity 1: Creating a colour palette in response to an identified market Activity 2: Creating a colour palette for a young and dynamic sports brand Section

More information

Hair Wellbeing. The Hierarchy of Hair Needs. Cortex Wellbeing. Cuticle Wellbeing. Scalp Wellbeing

Hair Wellbeing. The Hierarchy of Hair Needs. Cortex Wellbeing. Cuticle Wellbeing. Scalp Wellbeing The Hierarchy of Hair Needs Cortex Wellbeing This infographic details the different aspects of hair wellbeing. It aims to improve understanding of how to ensure our hair is well looked after - essential

More information

: In order to study tissues with a microscope they must be preserved (fixed)- fixation Following fixation, blocks of tissue must be cut into thin

: In order to study tissues with a microscope they must be preserved (fixed)- fixation Following fixation, blocks of tissue must be cut into thin : In order to study tissues with a microscope they must be preserved (fixed)- fixation Following fixation, blocks of tissue must be cut into thin sections.-microtomy Other techniques involve dehydration

More information

Cosmetic treatments for hair loss only affect the user s appearance,

Cosmetic treatments for hair loss only affect the user s appearance, 7Cosmetic Treatments Cosmetic treatments for hair loss only affect the user s appearance, and not the structure or function of the living cells that make up the body. Cosmetic hair loss treatments are

More information

Technical Procedure for Hair Analysis. 1.0 Purpose This technical procedure shall be followed for the examination of hair evidence.

Technical Procedure for Hair Analysis. 1.0 Purpose This technical procedure shall be followed for the examination of hair evidence. Technical Procedure for Hair Analysis 1.0 Purpose This technical procedure shall be followed for the examination of hair evidence. 2.0 Scope This procedure applies to all hair cases in the Trace Evidence

More information

Chapter 4 A Study of Fibers and Textiles By the end of this chapter you will be able to:

Chapter 4 A Study of Fibers and Textiles By the end of this chapter you will be able to: Chapter 4 A Study f Fibers and Textiles By the end f this chapter yu will be able t: 1 Identify and describe cmmn weave patterns f textile samples Cmpare and cntrast varius types f fibers thrugh physical

More information

Materials needed: MAYAMY long-term eyebrow styling set consisting of:

Materials needed: MAYAMY long-term eyebrow styling set consisting of: Materials needed: MAYAMY long-term eyebrow styling set consisting of: 1. Long-term eyebrow styling composition 1, 8 ml softening and straightening solution; 2. Long-term eyebrow styling composition 2,

More information

Quest for Adventure: Olympic Equestrian Outfit Design

Quest for Adventure: Olympic Equestrian Outfit Design Quest for Adventure: Olympic Equestrian Outfit Design Quest for Adventure: Olympic Equestrian Outfit Design Outfit Features: Outfit Materials: Outfit Properties Cloth covered equestrian Riding helmet with

More information