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1 Academic/Career & Technical Related/Demonstration Lesson Plan lnstructor -=N=a=n..::..::c=..vRe=e=d::...ov' Date Program/Ciass. _...:.::Jr_;C=o=s:.:..:m:..:..:e=t:..::o.:.::logyiU.- J)B"--3.:... Period. State Indicator/Competency: Explain the composition and structure of the hair follicle. Instructional Objective(s): );:> Students will be able to define trichology with 100% accuracy );:> Students will be able to state the location of the hair root with 100% accuracy );:> Students will be able to list 3 of the 5 structures of the hair root with 90% accuracy );:> Students will be able to list in order the structure of the hair shaft with 100% accuracy Materials: Practice test Method of Instruction:. : Activities: 1. Students will complete the attached practice test and worksheets related to Properties of the Hair and Scalp. You may use your Coursemates for reference where needed Closure: Where is the hair root located? What are 3 ofthe 5 structures ofthe hair root? What are the 3 parts of the hair shaft in order? t Assessment: Blizzard Bag 10 points.

2 Name: Class: Date: ID: A Jr. Blizzard Bag I Properties of the Hair and Scalp Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A small, cone-shaped area located at the base ofthe hair follicle that fits into the hair bulb is the: a. hair follicle c. dermal papilla b. hair strand d. dermal cuticle 2. The substance secreted by the sebaceous glands is called: a. sebum c. sudoriferous b. sulfur d. lymph 3. The scientific study of hair, its diseases, and its care is known as: a. dermatology c. cosmetology b. biology d. trichology 4. The part ofthe human hair that projects above the skin is known as the: a. hair root c. hair bulb b. hair structure d. hair shaft 5. The pocket or tubelike depression in the scalp or skin that contains the hair root is the: a. bulb c. shaft b. follicle d. dermal 6. The thickened, clublike structure that forms the lower part of the hair root is the: a. cuticle layer c. dermal papilla b. hair bulb d. arrector pili 7. The tiny, involuntary muscle fiber in the skin inserted in the base ofthe hair follicle is the: a. inner follicle c. arrector pili b. angled bulb d. dermal papilla 8. The three main layers ofthe hair shaft are the cuticle, cortex, and : a. middle layer c. matrix layer b. medulla layer d. medium layer 9. The layer that consists of transparent, scale like cells that look like shingles on a roof is the: a. cortex layer c. middle layer b. cuticle layer d. medulla layer 10. The fibrous protein core formed by elongated cells that contains melanin pigment is the: a. cuticle layer c. cortex layer b. overlapping layer d. medulla layer 11. A lengthwise section of hair shows that cuticle scales overlap and each individual cuticle scale is attached to the: a. medulla c. cortex b. melanin d. root 12. The cortex is responsible for the natural color of hair, 90 percent of the total weight, and hair: a. growth c. length b. elasticity d. porosity 13. The medulla, the innermost layer ofthe hair, is composed of ce11s that are: a. transparent c. flat b. elongated d. round '. 1

3 Name: ID: A 14. Hair is composed of protein that grows from cells originating within the: a. hair bulb c. dermal papilla b. hair follicle d. medulla layer 15. The hair shaft that emerges from the scalp is a nonliving :fiber composed of: a. keratinized acids c. melanin protein b. hydrogen bonds d. keratinized protein 16. The units of structure that build protein and are linked end-to-end like a string of pearls are: a. oxygenated cells c. amino acids b. primary acids d. lymph glands 17. Chemical bonds that hold together amino acid molecules are: a. primary bonds c. peptide bonds b. keratinized bonds d. composed bonds 18. When peptide bonds hold together very long chains of amino acids, it is called a: a. primary chain c. keratin chain b. polymer chain d. polypeptide chain 19. The three different types of cross-links that form bonds between the polypeptide chains in the cortex are: a. oxygen, hydrogen, and salt bonds b. hydrogen, ionic, and carbon bonds c. ionic, helix, and covalent bonds d. hydrogen, salt, and disulfide bonds 20. The five major elements found in skin, hair, and nails are often referred to as the: a. CORNS elements c. AMINO elements b. COABS elements d. ACID elements 21. A temporary side bond between adjacent polypeptide chains that is broken by changes in ph is a: a. hydrogen bond c. salt bond b. carbon bond d. sulfur bond 22. Permanent waving and hair relaxers change the shape of hair by chemically altering the hair's: a. hydrogen bonds c. disulfide bonds b. ionic bonds d. amino acids 23. Hydroxide chemical relaxers break disulfide bonds and convert them to: a. lanthionine bonds c. carbon bonds b. sulfur bonds d. hydrogen bonds 24. All natural hair color is the result of pigment located in the cortex called: a. melanin c. sebum b. tissue d. proteins 25. The melanin that provides brown or black color to hair is: a. ionic c. pheomelanin b. eumelanin d. telogen 26. The term that is used to describe the shape ofthe hair strand is the: a. growth pattern c. degree pattern b. curling pattern d. wave pattern 27. Hair that has the largest diameter and usually requires more processing time is: a. fine hair texture c. medium hair texture b. coarse hair texture d. gray hair '.-. 2

4 Name: ID: A. 28. The measurement that describes the number of individual hair strands on one square inch ofthe scalp is: a. porosity c. elasticity b. diameter d. density 29. The ability ofthe hair to absorb water or oil is: a. porosity c. density b. elasticity d. saturation 30. Chemical services performed on hair with low porosity require a solution that is: a. less alkaline c. gentle b. absorbent d. more alkaline 31. The ability of hair to stretch and return to its original length without breaking is referred to as hair: a. density c. porosity b. elasticity d. resistance 32. Hair flowing in the same direction, the result offollicles sloping in the same direction form a: a. section c. hair whorl b. hair stream d. cowlick 33. Dry hair and scalp should be treated with products that contain moisturizers and: a. sulfur c. alcohol b. chemicals d. emollients 34. Oily hair and scalp are caused by improper washing or overactive: a. sudoriferous glands c. sebaceous glands b. monilethrix d. arrector glands 35. The short, fine, and downy hair that helps in the efficient evaporation ofperspiration is: a. medulla hair c. pheomelanin b. terminal hair d. veilus hair 36. The three growth cycles of human hair are: a. anagen, endocentric, and telogen c. anagen, catagen, and telogen b. catagen, return, and transition d. anagen, transition, and mature 37. The average growth of healthy scalp hair is about: a. 1/8 inch per month c. 114 inch per month b. 1 inch per month d. 2 inches per year 38. The resting phase or final phase ofthe hair cycle that lasts until the fully grown hair is shed is the: a. telogen phase c. catagen phase b. anagen phase d. transition phase 39. The sudden falling out of hair in round patches or baldness in spots is: a. postpartum alopecia c. alopecia totalis b. alopecia androgenetica d. alopecia areata 40. The technical term for gray hair is: a. acquired c. albino b. canities d. ringed 41. A condition that is characterized by brittleness and the formation of nodular swellings along the hair shaft is: a. fragilitas crinium c. alopecia areata b. trichorrhexis nodosa d. hypertrichosis 42. The medial term that is used to describe dandruff is : a. alopecia c. pityriasis b. selenium d. pyrithione '

5 Name: ID: A 43. Current research confirms that dandruff is the result ofa fungus called: a. pyrithione c. capitis b. steatoides d. malassezia 44. A severe type ofdandruff characterized by an accumulation of greasy or waxy scalp scales mixed with sebum is: a. pityriasis capitis c. pityriasis papules b. tinea favosa d. pityriasis steatoides 45. Tinea is characterized by itching scales and sometimes painful circular lesions and is caused by: a. seborrheic dermatitis c. subcutaneous tissue b. parasites d. fungal organisms 46. An infestation ofthe hair and scalp with head lice is: a. pediculosis capitis c. alopecia areata b. pediculosis furuncle d. vesicles parasites 47. A highly contagious skin disease caused by a parasite called a mite is: a. dandruff c. scabies b. pediculosis d. tinea 48. A carbuncle is an inflammation of the subcutaneous tissue caused by: a. staphylococci c. nits b. mites d. head lice 49. A client with seborrheic dermatitis should be to referred to: a. a day spa c. a physician b. a treatment d. another stylist 50. The type offungal infection that is characterized by red papules or spots at the opening ofthe hair follicle is: a. tinea favosa c. tinea capitis b. pityriasis steatoides d. androgenic alopecia 4

6 2 ESSENTIAL EXPERIENCE Hair Follicle Structure Using the following key, please label the cross-section of the hair. 113 "0 ;:11:1 0 ""0 : : 1'f'l ;! 1'f'l VI.' 0 r.n :::!: ;:11:1 c.n n > r-' ""0.,,.' :... Ji '

7 ,, r ' 6 ESSENTIAL EXPERIENCE Word Search-Properties of the Hair and Scalp After determining the correct words from the clues provided, locate the words. in the word search puzzle. Wo.rd Clue Abnormal hair loss. Growth phase in the hair cycle in which new hair is created: The lowest area or part of a hair strand. The technical term for gray hair. Inflammation of the subcutaneous tissue caused.by.. Staphylococci, ' ' Transitional phase of hair growth... '. Outermost layer of hair. The number of hairs per square inch on the scalp. Chemical side bond that joins the sulfur atoms of two neighboring cysteine amino acids to create cystine. The ability of the hair to stretch and return to its original length... Tubelike depression, or pocket, in the skin or scalp that contains the hair root. Combined with crinium, it's the technical term for brittle hair. Innermost layer of hair...._ :---'---t-- ==:..:::...::= ====--- Technical term tor beadecl hair.. Dandruff. The ability of the hair to absorb moisture. The part of the hair structure found below the skin surface. Skin disease caused by the "mite." Dry, sulfur-yellow, cuplike crusts on the scalp in tinea favosa or favus. The portion of the hair that projects beyond the skin. The degree of coarseness or fineness of the hair. Ringworm. Hair that forms in a circular pattern, as on the crown. I 117.,., "" C::.., 0.. 'i.,...,., 't ; > ::u c.il. QO n., >r ; '.' ;-.....,.. ;:. I