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Anat 1 Quiz

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1. Sebum (substance made by the Sebaceous gland) ?




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2. How does tanning occur?




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3. Stratum Lucidum?




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4. Dermis?




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5. What aids in maintaining body temperature in the dermis?




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6. Keratinocytes?




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7. Stratum Basale (deepest layer of the Epidermis) ?




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8. How is Melanin produced?




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9. What plays an important role in regulating heat loss from the body surface?




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10. Pacinian Corpuscle?




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11. - the stratum corneum rubs and flakes slowly which is dandruff. - average person sheds 40lb of flakes in a lifetime. - new cells are replaced by the stratum basale in 25 to 45 days.




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12. - external body covering. - keeps water and other molecules in the body. - protective - insulates and cushions the deeper body organs. - protects from bumps and cuts, chemical damage, ultraviolet radiation and bacteria.




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13. - secretes oily substances, contain sebum=grease - reside in the dermis. - found all over the skin, except on the palms of the hands and soles of the feet. - ducts empty into hair follicles.




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14. - biggest layer of cells. - contain intermediate filaments, most cells are dead. - become flat and keratanized until they die and become the stratum lucidum.




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15. - top most layer (dead cells) - 20-30 cell layers thick - dead cell remnants cornified or corny cells (cornu= horn) are filled with Keratin. - -




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16. - gives us goosebumps, controlled by ANS.




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17. - sweat gland, found in the axillary and genital areas. - larger than eccrine glands, ducts release into hair follicles. - secretion contains fatty acids and proteins and all substances present in eccrine glands.




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18. - sweat gland that releases to the skin through a duct/pore. - found all over body - produces sweat, a clear secretion containing (water, salts, vit c, traces of metabolic wastes, and lactic acid) - sweat is acidic and inhibits growth of bacteria




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19. - deepest skin layer (contains blood vessels, sweat and oil glands) - contain deep pressure receptors ( Pacinian Corpuscles) - Phagocytes are found here which help prevent bacteria from entering the body. - collagen and elastic fibers are found h




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20. - Keratinocytes ( keratin cells) are cells that produce keratin, fibrous protein that makes the epidermis a tough protective layer.





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