Chapter 16: Skin: Vocabulary

Question 1

adipocyte

Answer 1

Fat cell

Question 2

albino

Answer 2

Person with skin deficient in pigment (melanin)

Question 3

apocrine sweat gland

Answer 3

One of the large dermal exocrine glands located in the axilla and genital areas. It secretes sweat that, in action with bacteria, is responsible for human body odor

Question 4

basal layer

Answer 4

Deepest region of the epidermis; it gives rise to all the epidermal cells

Question 5

collagen

Answer 5

Structural protein found in the skin and connective tissue

Question 6

cuticle

Answer 6

Band of epidermis at the base and sides of the nail plate

Question 7

dermis

Answer 7

Middle layer of the skin

Question 8

eccrine sweat gland

Answer 8

Most numerous sweat-producing exocrine gland in the skin

Question 9

epidermis

Answer 9

Outermost layer of the skin

Question 10

epithelium

Answer 10

Layer of skin cells forming the outer and inner surfaces of the body

Question 11

hair follicle

Answer 11

Sac within which each hair grows

Question 12

integumentary system

Answer 12

The skin and its accessory structures such as hair and nails

Question 13

keratin

Answer 13

Hard protein material found in the epidermis, hair, and nails. Keratin means horn and commonly is found in the horns of animals

Question 14

lunula

Answer 14

The half-moon shaped, whitish area at the base of a nail

Question 15

melanin

Answer 15

Skin pigment. it is formed by melanocytes in the epidermis.

Question 16

eumelanin

Answer 16

Brown-black skin pigment

Question 17

pheomelanin

Answer 17

Red-yellow skin pigment

Question 18

paronychium

Answer 18

Soft tissue surrounding the nail border

Question 19

pore

Answer 19

Tiny opening on the surface of the skin

Question 20

sebaceous gland

Answer 20

Oil-secreting gland in the dermis that is associated with hair follicles

Question 21

sebum

Answer 21

Oily substance secreted by sebaceous glands

Question 22

squamous epithelium

Answer 22

Flat, scale-like cells composing the epidermis

Question 23

stratified

Answer 23

Arranged in layers

Question 24

stratum
(singular)

strata
(plural)

Answer 24

A layer (of cells)

Question 25

stratum corneum

Answer 25

Outermost layer of the epidermis, which consists of flattened, keratinized cells

Question 26

subcutaneous layer

Answer 26

Innermost layer of the skin, containing fat tissue

Question 27

sweat glands

Answer 27

Produces sweat, a watery secretion

Question 28

elastin

Answer 28

Protein that is elastic and helps skin return to its original position when pinched or poked

Question 29

striae

Answer 29

Stretch marks

Question 30

onycholysis

Answer 30

Loosening of the nail plate with separation from the nail bed. Often seen in psoriasis or with a nail infection