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Stack #4734241
| Question | Answer |
|---|---|
| Name 4 functions of skin | Protection, sensation, temperature regulation, excretion, production of vitamin D |
| Which layer of the epidermis is only found in the palms and soles of the feet? | Statrum lucidum |
| Name the layers of the skin from bottom to top | Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum |
| What pigment protects skin from UV radiation? Where is this pigment produced? | melanin, melanocytes |
| In which layer of the skin would a basal cell carcinoma begin | stratum basale |
| Dermal papillae found between the epidermis and dermis form what commonly known feature | fingerprints |
| What are the 2 major layers of the dermis? How does their structure differ? | Papillary layer - loose connective tissue Reticular layer - bundles of collagen fibers |
| Your neighbor is about to have knee surgery. Will the surgeon cut vertically or horizontally for the surgical incision? Why? What layer causes this? | Horizontally going with the lines of cleavage so there will be less scarring. The collagen fibers of the reticular dermis |
| You have just run 1 mile and your face is red. Explain why. | blood vessels in your skin are dilating to release heat |
| A sudoriferous gland produces ___________ | sweat |
| Which type of sudoriferous glands are known to cause body odor? | apocrine |
| What is the function of sebum? | lubricates skin and hair, kills bacteria |
| Name 3 functions of hair on the body. | keeps in heat, sun protection, notify of bugs, protects eyes, prevents entry of objects into nose |
| The portion of the hair that sticks out of the skin is the hair _______, while the portion within the skin is the hair _______. | shaft, folicle |
| What occurs at the hair bulb? | Hair cells divide and are filled with keratin and pigments |
| You just got a chill and your arm hairs are raised. Why? | Arrector pili muscles are raising the muscles |
| You use your fingernails to pick up a thread from the table. What portion of the nail did you use? | Free edge |
| Three nail structures can be found within this small area. Name them. | proximal nail fold, lunula, eponychium |
| What internal portion of the nail is the site of nail formation? | nail matrix |
| What are 3 features that both hair and nails share? | made of keratin, protect the skin, have cuticles |
| What are the epidermal layer of cells that are constantly being shed? | stratum corneum |
| A classmate has a bad burn and needs a skin graft, which layer of cells is affected? | dermis |
| In the human population which fingerprint type is most common? | loop |
| How is dark skin physiologically different from light skin? | more melanin, same number of melanocytes |
| Which epidermal layer is constantly dividing? | Stratum basale |
| What are the 4 functions of body/head hair? | keeps in heat, protects from the sun, alerts to insects, eyelashes protect eyes, filters nose pathogens |
| What are the glands that secrete oils near hair called? | sebaceous |