Chap 16, 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. Eumelanin is brown-black pigment, while pheomelanin is red-yellow.

Question 16

paronychium

Answer 16

Soft tissue surrounding the nail border.

Question 17

pore

Answer 17

Tiny opening on the surface of the skin.

Question 18

sebaceous gland

Answer 18

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

Question 19

sebum

Answer 19

Oily substance secreted by sebaceous glands.

Question 20

squamous epithelium

Answer 20

Flat, scale-like cells composing the epidermis.

Question 21

stratified

Answer 21

Arranged in layers.

Question 22

stratum (plural: strata)

Answer 22

A layer (of cells).

Question 23

stratum corneum

Answer 23

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

Question 24

subcutaneous layer

Answer 24

Innermost layer of the skin, containing fat tissue.

Question 25

sweat glands

Answer 25

2 types of exocrine glands found in the skin. 1) apocrine 2) eccrine