anatomy of the skin

Question 1

layers of epidermis from superficial to deep

Answer 1

stratum corneum, lucidum, granulosum, spinosum, basale

Question 2

boundary between epidermis and dermis

Answer 2

basement membrane

Question 3

stratum lucidum location

Answer 3

found only in thick skin

Question 4

Langerhan cells function

Answer 4

antigen presenting cells

Question 5

components of pilosebaceous unit

Answer 5

sebaceous gland
arrector pili
aporcine gland
eccrine gland

Question 6

apocrine vs eccrine sweat glands

Answer 6

apocrine are located in hairy areas (armpits, genitalia)

Question 7

functions of skin

Answer 7

vitD synthesis
protect against UV
immune-mediated reactions
thermal regulation

Question 8

mast cells

Answer 8

contain preformed granules which they release upon injury

Question 9

melanocyte

Answer 9

located in stratum spinosum. produce melanin to protect against UV from sunlight

Question 10

main component of dermis

Answer 10

fibroblasts- produce and secrete ECM

Question 11

temperature regulation

Answer 11

1. vasodilation to release heat from blood
2. sweat glands produce sweat to lose heat through evaporation