Integumentary System

Question 1

A primary function of ________ is absorption of calcium in the digestive tracts

Answer 1

Vitamin D

Question 2

The __________ of the integumentary system allows for excretion and absorption through the skin while still providing protection from external environment

Answer 2

semi-permeable membrane

Question 3

_________ in the dermal layer provide sensory perception close to the surface of the skin.

Answer 3

Free nerve endings

Question 4

_________ is the main substance in the epidermis that protects from heat, microbes, and chemicals

Answer 4

Keratin

Question 5

The tactile cells of the epidermal layer are called ______

Answer 5

Merkel cells (discs)

Question 6

___________ produce pigment that absorbs UV light

Answer 6

Melanocytes

Question 7

The five layers of epidermis are

Answer 7

Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, stratum corneum

Question 8

The stratum ________ is mainly found in the palms and soles of the feet.

Answer 8

Lucidum

Question 9

Langerhans cells function to ________

Answer 9

provide immune response

Question 10

The stratum basale consists of ________ layer(s) of cuboidal/columnar keratinocytes

Answer 10

One

Question 11

Lamellar granules in the stratum _______ release a lipid-rich secretion to create semi-permeable protective barrier

Answer 11

granulosum

Question 12

Psoriasis is a skin disorder in which keratinocytes _________

Answer 12

divide more quickly than normal and shed prematurely

Question 13

The dermis consists of mainly ________ tissue

Answer 13

connective

Question 14

Free nerve endings in the dermis that sense heat are thermoreceptors while those that sense pain are

Answer 14

nocireceptors

Question 15

Hair root plexus functions to _________

Answer 15

sense when the associated hair is stimulated

Question 16

The secretion ________ coats hair and keeps skin soft and pliable

Answer 16

sebum

Question 17

Ear wax is secreted by _______ glands

Answer 17

ceruminous

Question 18

The cellular response when migrating cells touch one another and stop migrating is known as ________

Answer 18

contact inhibition

Question 19

List the ABCDE’s of malignant melanoma detection.

Answer 19

Asymmetry, Border (irregular), Color (uneven), Diameter (>0.25in), Elevation

Question 20

In deep wound healing, __________ deposit collagen to strengthen the wound

Answer 20

fibroblasts

Question 21

What is the most superficial layer of the skin?

Answer 21

Stratum corneum

Question 22

Which of the following is not considered part of the skin - Epidermis, Dermis, Hypodermis?

Answer 22

Hypodermis

Question 23

What is the deepest layer of the epidermis?

Answer 23

Stratum basale, germinatum

Question 24

What condition is due to the buildup of the yellow pigment bilirubin in the skin?

Answer 24

Jaundice

Question 25

What condition is the result of blood not picking up an adequate amount of oxygen that makes the skin appear bluish?

Answer 25

Cyanosis

Question 26

Approximate size and weight of adult skin

Answer 26

22 square feet

10-11 lbs

Question 27

List functions of integumentary system

Answer 27

Thermoregulation
Protection
Sensation
Immunity
Excretion
Vitamin D synthesis
Blood reservoir

Question 28

The cell cycle from cell formation to shedding takes _______

Answer 28

2-4 weeks

Question 29

List the pigments that affect skin color

Answer 29

melanin, carotene, hemoglobin

Question 30

Epidermal wound healing takes _____

Answer 30

24-48 hrs

Question 31

List steps of deep wound healing.

Answer 31

inflammatory phase
migratory phase
proliferation phase
maturation phase

Question 32

The process of scar formation is called _____

Answer 32

fibrosis

Question 33

Compare and contrast hypertrophic scars with keloid scars

Answer 33

Hypertrophic scars - remain w/in boundary of original wound

Keloid - extends beyond boundaries of wound into surrounding tissue

Question 34

Epidermal Growth Factor is ________

Answer 34

a protein hormone that stimulates growth of epidermal and epithelial cells

Question 35

The dermis is composed of _____. The layers of the dermis are ________

Answer 35

connective tissue, collagen and elastin

papillary layer
reticular layer

Question 36

The four stages of deep wound healing are _________

Answer 36

inflammatory phase
migratory phase
proliferation phase
maturation phase