Anatomy Essay

340 WordsOct 23, 20122 Pages
5. What is the actively growing region of the hair? 6. Label the following and then describe/define them. Hair regions: cuticle" ÿ/.z,'/-AorgÿUÿÿ ÿ ÿÿ, --" .-ÿ. _ O'//, // V ,,/-lair t . ÿg/ . /1 I ..... / .,. lit ." .-i --" _--t'/ .... /., .... . / Follicle wall ÿ¢'1ÿ'ÿ ,dÿÿ Epithelial root sheath: Connective tissue root sheath: Oÿ ÿ ÿ,,, hair is straight or and ,/tOg/lÿi/p__ÿ 12. What is alopecia? And what is thought to be the cause? (ÿ(ÿ_ÿq.g,ÿO]" " U 13. What are "goose bunlps"? ÿ ÿ(ÿ£ÿÿ,/jÿÿ ÿ TheSkiru.' M ÿcrovÿewer Set 5 7 Sh2ÿ 5: HAIR 1. Hair is derived from what part of the skin? 2. What is the follicle?ÿ€ÿÿÿ'r'ÿ r - _.,_.ÿÿ,,dÿ _ L_......, ÿj .ÿ., - 3. What is the scientific_term for.(3.9 And why is it, important to hairnroduction9 ÿ ÿ r,-ÿ. 4. What does the shape of the fdllicle to thg surface determine? {AJÿÿ Z4" 5. Notice that the hair follicle approaches the skin surface at a slight angle. Which muscle pulls the hair into an upright position and when does it do this? ÿddA-,eÿÿ" /.4-- o The skin is one of the most important storage places of.ÿ. Therefore certain rays of the sun can be absorbed to form VAtÿ/T)/ÿ ./ÿ Derivatives of the Skin (Nails) 1. A nail is a scalelike modification of which layer7 zÿÿ/Yÿ 2. List 1). 2). describe the 3 of a nail. u ÿ ÿ.ÿ 3). 3. Explain why the nail appears body of the nail (2) free edge of nail (2) nail matrix squamous epithelium bone cuticle fat. lateral nail fold lunula nail bed nail root stratum germinatirum Sÿe 6." FINGERNAIL 1. Fingernails are derived from what part of the skin? ÿÿ2ÿ.zÿ-ÿ 3. What do the nail's growth and the hair's growth have in common? *If time remains, test the strength of your hair! (Directions at station.) And/or look at you hair and/or

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