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Anatomy: Intergumary

QuestionAnswer
Name 4 functions of skin. protection from the sun, sensation, temperature regulation., excretion, production of Vitamin D
Which layer of the epidermis is only found in the palms and soles of the feet? stratum lucidum
Name the layers of the skin from bottom to top. stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and 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?
What are the 2 major layers of the dermis? How does their structure differ? epidermis - exterior/surface level, dermis - middle layer of skin
Your neighbor is about to have knee surgery. Will the surgeon cut vertically or horizontally for the surgical incision? Why? What layer causes this? horizontal incision, less scaring and faster healing, and collagen fibers of the reticular dermis
You have just run 1 mile and your face is red. Explain why. The 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 the skin and hair, kills bacteria
Name 3 functions of hair on the body. keeps in heat, sun protection, alerts us to insects, protects eyes, and prevents entry of objects into the 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, follicle
What occurs at the hair bulb? hair cells dividing and are filled with keratin and pigments
You just got a chill and your arm hairs are raised. Why? arrector pili muscles are raising their hairs
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, have cuticles
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 skin, have cuticles
What are the epidermal layer of cells that are constantly being shed? stratus 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? menocyte numbers are the same, amount of melanin produced is greater in darker skinned indivuals.
Which epidermal layer is constantly dividing? Straatum basale
What are the 4 functions of body/head hair? Keeps in heat, protects from the sun, alerts us to insects, eyelashes protect eye, nose hair filters pathogenes.
What are the glands that secrete oils near hair called? The sebaceous glands
Created by: Miguel Valle Jr
 

 



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