Quiz 2 - Dermis

Question 1

Dermis

Answer 1

contains strong, flexible connective tissue, contains…. nerve fibers, blood vessels, lymphatic vessels, hair follicles, oil & sweet glands

Question 2

layers of the dermis

Answer 2

1) papillary layer

2) reticular layer

Question 3

papillary layer

Answer 3

thin layer of areoler tissue, contains…

- dermal papillae

Question 4

dermal papillae

Answer 4

projections containing capillary loops, touch receptors, and free nerve endings (create finger tips)

Question 5

reticular layer

Answer 5

~80% of skins thickness, dense irregular connective tissue along with… collagen fibers and elastin fibers

Question 6

collagen fibers

Answer 6

adds strength, resist deformation

Question 7

elastin fibers

Answer 7

stretch, recoil properties

Question 8

hypodermis

Answer 8

(subcutaneous layer) - deep to dermis, composed of adipose and other loose connective tissue, anchors skin to body (ex: muscles)

Question 9

disruptions of skin

Answer 9

stretch marks and blisters

Question 10

stretch marks

Answer 10

tearing of dermis due to extreme stretching of skin

Question 11

blisters

Answer 11

seperation of epidermis and dermis by fluid-filled pocket

Question 12

3 skin color pigments

Answer 12

melanin, carotene and hemoglobin

Question 13

melanin

Answer 13

yellow-brown and black pigment

Question 14

carotene

Answer 14

yellow to orange pigment found in some plants

- accumulates in stratum corneum and hypodermis fat

Question 15

hemoglobin

Answer 15

reddish pigment in oxygenated RBC’s circulating in dermal capillaries