Extra Skin Q's

Question 1

Name the two layers of the dermis

Answer 1

Reticular layer - fibrous area on subcutis

Papillary layer - blood vessels & cells

Question 2

The dermis recieves only …. nerve supply

Answer 2

sympathetic

Question 3

What structures does the dermis contain?

Answer 3

arteries, veins, capillaries, lymphatics

hair follicles, sweat & sebaceous glands, arrector pili muscle, sensory nerve fibres

Question 4

label diagram of skin (past exam Q)

Answer 4

DO IT SHITHEAD

Question 5

Describe the synthesis of vitamin D

Answer 5

Epidermal cells produce cholecalciferol (vitamin D3) in the presence of UV radiation.
Liver & kidneys convert D3 into calcitriol to aid absorption of calcium and phosphorous.

Question 6

What is the function of the arrector pili muscle?

Answer 6

Lift hairs on skin -insulation, goose bumps, compresses & empties sebaceous glands

Question 7

What are the two types of skin glands?

Answer 7

Sebaceous and sweat

Question 8

What do sebaceous glands secrete?

Answer 8

sebum

Question 9

Name the two kinds of sweat glands

Answer 9

Apocrine - secrete into hair follicle
Eccrine - not associated w/ hair follicle

(look at diagram on page 11 for difference)

Question 10

Name the accessory structures of the integument

Answer 10

nails, hair, sweat & sebaceous glands