integument lecture

Question 1

what are the 2 major layers of skin?

Question 2

how well vascularized is the epidermis?

Question 3

list the five layers of the epidermis and the two layers of the dermis.

Question 4

what is the function of the stratum corneum?

Question 5

what is the most common cell type in the epidermis? what do these cells make?

Question 6

what is a desmosome and where are they found?

Question 7

where on the body is the stratum lucidum found?

Question 8

what is the function of the stratum granulosum? are the cells of this layer dead or alive?

Question 9

what are dendritic cells and in what layer of the skin are they most abundant?

Question 10

which layers of the skin are living and which are composed of dead cells?

Question 11

what layer of the skin functions in regeneration? Besides stem cells, what other two types
of cells are found in this layer?

Question 12

what is the function of melanocytes and melanin?

Question 13

what are tactile cells? where specifically do tactile cells occur? what do tactile cells
associate with?

Question 14

what two types of tissue make up most of the dermis? which makes up mostly the papillary
layer? which the reticular layer?

Question 15

if you get a paper cut that doesn’t bleed, how deeply did the paper cut?

Question 16

how well vascularized is the dermis?

Question 17

what three structures occur in the dermis that function as sensory receptors?

Question 18

describe the composition and function of the hypodermis.

Question 19

contrast eccrine and apocrine sweat glands.

Question 20

what are the functions of sebum? what produces sebum?

Question 21

besides sweat and oil glands, what other two glands occur in the skin?

Question 22

what is the function of cerumen?

Question 23

list four things that the skin protects us from

Question 24

besides protection, what are four functions of the integument?

Question 25

what vitamin is made, in part, in the skin?

Question 26

explain how sweating actually cools the body.

Question 27

describe how the brain alters blood flow to the skin in an attempt to either cool or warm the
body.

Question 28

what are the most common skin problems?

Question 29

what is the difference between dermatitis and psoriasis?

Question 30

what is the most common type of cancer?

Question 31

what type of cell proliferates in basal cell carcinoma versus malignant melanoma?

Question 32

explain the ABCD rule for spotting potential skin cancers.