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Flashcards in Human Body Unit Test Deck (40):
1

Describe the Integumentary System

organ system that provides a protective covering around the body (skin, hair, nails)

2

describe the muscular system

primary function is movement and flexibility

3

describe the skeletal system

primary function is to support, protect, and allow body to move

4

describe the cardiovascular and circulatory systems

transports blood throughout the body

5

describe the respiratory system

takes in oxygen and expels carbon dioxide

6

describe the nervous system

sends electrical signals throughout the body

7

describe the digestive system

group of organs that digest food

8

describe the lymphatic system

collects extracellular fluid and returns it to the blood

9

define homeostasis

the maintenance of a constant internal state in changing environment

10

describe bones protect

different structures protect vital internal organs such as the lungs, heart, and kidney

11

describe what storage has to do with bones

bones store minerals that help your nerves and muscles and fat that can be used for energy

12

describe how muscles help you move

skeletal muscles pull on bones to produce movement

13

describe what bones have to do with blood cell formation

some bones contain marrow that produces blood cells

14

describe gliding joint

allows bones to glide over one another with some flexibility (hand+wrist)

15

describe ball-and-socket joints

lets you move freely in all directions (hips+shoulders)

16

describe hinge joints

ability to open and close like a door (knee, elbow)

17

describe skeletal muscle

enables bone movement (bicep, tricep)

18

describe smooth muscle

moves food through digestive system (stomach)

19

describe cardiac muscle

pumps blood throughout body (heart)

20

describe flexors

bends part of your body

21

describe extensors

straightens part of your body

22

aerobic exercise

strengthens heart and endurance: swimming, joggling, cycling

23

resistance exercise

working against the weight of an object (curl-ups)

24

how does skin protect?

keeps water in and foreign particles out

25

how does skin help with touch?

nerve endings in skin let you feel things

26

what does skin have to do with body temp.?

sweat glands regulate body temperature

27

how does skin help with waste removal?

waste chemicals can be removed in sweat

28

describe the epidermis

surface layer of cells on a plant or animal, keratin within cells

29

describe the dermis

layer below epidermis, fibers within called collagen

30

describe the heart

main muscle that pumps blood throughout the body

31

describe veins

vessel that carries blood to the heart

32

describe arteries

vessel that carries blood away from the heart

33

describe capillaries

tiny vessel that allows exchange between cells in tissue

34

pulmonary circulation

between heart and lungs

35

systemic circulation

between heart and rest of body

36

describe the pharynx

passage from the mouth to the larynx and esophagus

37

describe the larynx

area of the throat that contains vocal cords and produces vocal sounds

38

describe the trachea

tube that connects the larynx to the lungs

39

describe the bronchus

one of two tubes that connect lungs with the trachea

40

describe alveoli

any of the tiny air saces of the lungs where oxygen and carbon dioxide are exchanged