quiz #2 - integumentary system

Question 1

Keratinized stratified squamous epithelium composes the…

Answer 1

epidermis

Question 2

Which pigment secreted by specialized cells in the skin is capable of absorbing ultraviolet light?

Answer 2

Melanin

Question 3

In a skin infection, which cell will take up and process microbial antigens?

Answer 3

Intraepidermal macrophages (Langerhans cells)

Question 4

Apoptosis of cells occurs within the…

Answer 4

stratum granulosum

Question 5

Dense irregular connective tissue will be found in the…

Answer 5

dermis

Question 6

This type of exocrine gland undergoes a higher rate of mitosis due to its holocrine secretion

Answer 6

Sebaceous gland

Question 7

Which condition results from androgens inhibiting hair growth in genetically predisposed adults?

Answer 7

Male-pattern baldness

Question 8

You stepped on a nail. List the sequential strata of the epidermis that the nail penetrated through to reach the dermis

Answer 8

Corneum, lucidum, granulosom, spinosum, basale

Question 9

“Goose bumps” are caused by…

Answer 9

contraction of arrector pili muscles

Question 10

When you are hot, blood vessels in the dermis _____ to maintain homeostasis

Answer 10

dilate

Question 11

When you are cold, blood vessels in the dermis _____ to maintain homeostasis

Answer 11

constrict

Question 12

Heat loss from the body will _____ when blood vessels in the dermis dilate

Answer 12

increase

Question 13

Heat loss from the body will _____when blood vessels in the dermis constrict

Answer 13

decrease

Question 14

matching: hair shaft

Answer 14

Physical portion of hair, made of dead keratinized epidermal cells bonded together by protein

Question 15

matching: medulla

Answer 15

Central area of hair

Question 16

matching: cortex

Answer 16

Consists of hardened cells…

Question 17

matching: matrix

Answer 17

Actively dividing cells within hair, inside bulb

Question 18

matching: cuticle

Answer 18

Consists of hardened cells containing keratin; outer layer of hair

Portion of stratum corneum that grows onto the nail body

Question 19

matching: nail matrix

Answer 19

Actively dividing cells of the nail, region of nail growth, 1mm per week

Question 20

matching: nail bed

Answer 20

Hardened epithelial tissue above the hyponychium

Question 21

matching: Lunula

Answer 21

white crescent shaped area at proximal end of nail bed

Question 22

In the elderly, blood supply to the dermis is reduced and sweat glands are less active. This combination of factors would most affect…

Answer 22

the ability to thermoregulate

Question 23

_____ is/are a result of a progressive loss of collagen and elastic fibers

Answer 23

Wrinkles

Question 24

The “rule of nines” is used to estimate the…

Answer 24

Surface area affected by burns

Question 25

A person with a severe sunburn would most likely have damage in which layer of the skin?

Answer 25

Epidermis

Question 26

In frostbite, the skin damage primarily occurs due to…

Answer 26

Ice crystal formation in tissues

Question 27

A patient with vitiligo will show which of the following in affected areas?

Answer 27

Loss of skin pigmentation

Question 28

The primary risk factor for the development of squamous cell carcinoma is…

Answer 28

Exposure to UV radiation