4 Integumentary System

Question 1

skin

Answer 1

largest organ in the body, it absorbs nutrients, regulates body temperature, and eliminates waste

Question 2

epidermis

Answer 2

outermost layer of skin, made of epithelial tissue

Question 3

dermis

Answer 3

middle layer of skin, made of connective tissue

Question 4

hypodermis

Answer 4

deepest fatty layer of skin, in contact with the muscles underneath it

Question 5

integumentary system

Answer 5

consists of skin, hair, and nails

Question 6

sensory nerve receptors

Answer 6

located in the dermis, they respond to touch and pass signals to the nerves of the peripheral nervous system

Question 7

sebaceous (oil) glands

Answer 7

produce sebum, or oil, which protects the skin and hair from drying and inhibits bacterial growth

Question 8

sudoriferous (sweat) glands

Answer 8

produce sweat, which allows the body to regulate temperature by cooling as it evaporates

Question 9

vitamin D

Answer 9

produced in the skin in response to ultraviolet radiation from sunlight, it is modified in the liver and kidneys to promote bone development

Question 10

hair

Answer 10

made of dead epidermal cells that have been converted to keratin, each hair consists of a root, a follicle, and a shaft

Question 11

hair growth

Answer 11

cells in the hair matrix at the base of the bulb divide and push upwards

Question 12

arrector pili

Answer 12

a smooth muscle attached to hair follicles that causes “goose bumps” to appear on the skin when contracted

Question 13

hair shaft

Answer 13

visible part of the hair, made of dead keratinized cells

Question 14

hair function

Answer 14

cushions and insulates, protects the nose, ears and eyes from small particles, and aids in the perception of touch

Question 15

nails

Answer 15

hard plates of dead epidermal cells that have been converted to keratin

Question 16

nail root

Answer 16

the portion of the nail embedded in the skin

Question 17

nail matrix

Answer 17

located beneath the root, it consists of epidermal cells that divide to produce new nail cells, allowing the nail to grow

Question 18

eti/o

Answer 18

cause

Question 19

py/o

Answer 19

pus

Question 20

hidr/o

Answer 20

sweat, sweat gland

Question 21

hydr/o

Answer 21

water, watery fluid

Question 22

sebum

Answer 22

oil secreted by the sebaceous glands, it protects the skin and hair from drying and inhibits harmful bacterial growth

Question 23

eczema

Answer 23

also called dermatitis, a term for several types of skin swelling causing red, dry, itchy skin

Question 24

etiology

Answer 24

the study of the causes of disease

Question 25

PMH

Answer 25

past medical history

Question 26

PHX

Answer 26

patient history

Question 27

BSA

Answer 27

body surface area

Question 28

OR

Answer 28

operating room

Question 29

CCU

Answer 29

coronary care unit

Question 30

DFM

Answer 30

decreased fetal movement