Circulation and Respiration Flashcards Preview

Science Class Maroon7 > Circulation and Respiration > Flashcards

Flashcards in Circulation and Respiration Deck (76):
1

The word cardio means

heart

2

The word vascular means

blood vessel

3

Arteries, veins, and capillaries are

blood vessels that carry blood pumped by the heart

4

The heart, blood, and blood vessels together make up

the cardiovascular system

5

What are three examples of how the cardiovascular system helps maintain homeostasis?

it carries nutrients to your cells, removes wastes from your cells, and carries chemical signals called hormones throughout the body

6

What kind of tissue makes up most of the heart?

cardiac tissue

7

Each upper chamber of the heart is called a(n)

atrium

8

Each lower chamber of the heart is called a(n)

ventricle

9

The right side of the heart pumps oxygen-poor blood to the

lungs

10

The left side of the heart pumps oxygen-rich blood to the

body

11

When atria relax, what do ventricles do?

contract

12

Why do the heart's valves close?

to prevent blood from going backwards

13

What part of the heart makes the "heartbeat" sound?

valves as they close

14

What carries blood back to the heart

vein

15

What allows exchanges between blood and body cells

capillary

16

What carries blood away from the heart

artery

17

What is pressure caused by heartbeats

blood pressure

18

What is caused by the rhythmic change in blood pressure?

pulse

19

What is the narrowest kind of blood vessel

capillaries

20

What kind of blood vessels are helped by the contracting of skeletal muscles?

veins

21

What kind of blood vessels stretch due to blood pressure?

arteries

22

What enters the blood when it is pumped to the lungs?

oxygen

23

What leaves the blood when it is pumped to the lungs?

carbon dioxide

24

Where does the exchange of blood and oxygen take place in the lungs?

capillaries

25

The flow of blood between the heart and the lungs is

pulmonary circulation

26

The flow of blood between the heart and the rest of the body is

systemic circulation

27

Cardiovascular problems can harm the whole

body

28

A healthy diet and plenty of (blank) can reduce the risk of cardiovascular problems

exercise

29

What is the leading cause of death in the United States?

heart diseases

30

What is the fatty buildup in blood vessels

atherosclerosis

31

What is abnormally high blood pressure called?

hypertension

32

What is the brain damage caused by damage to the blood vessels called?

stroke

33

What is the condition caused by the death of heart muscle cells?

heart attack

34

What can happen when blood supply to the heart is blocked?

may suffer from heart attack

35

An adult body has about (blank) liters of blood

5

36

Name the four components of blood

plasma, red blood cells, platelets, white blood cells

37

The fluid part of the blood is called

plasmia

38

What do red blood cells do?

take oxygen to every cells in your body

39

To what does hemoglobin cling?

oxygen

40

When bleeding starts, (blank) form a plug to reduce blood loss

platelets

41

What are two things white blood cells do?

Destroys pathogens, and help clean wounds

42

Pathogens include

bacteria, viruses, and other microscopic organisms

43

To fight pathogens, white blood cells destroy pathogens or release

antibodies

44

What destroys dead or damaged body cells?

white blood cells

45

Blood helps to regulate body

temperature

46

When body temperature rises, blood vessels in the skin

enlarge

47

The force that blood exerts on the walls of the arteries is called

blood pressure

48

When is systolic pressure measured?

the pressure inside large arteries when ventricles contract

49

When is diastolic pressure measured?

the pressure inside arteries when ventricles relax

50

What are two organs that can be damaged by high blood pressure?

heart or kidney

51

To what does a blood type refer?

chemicals called antigens on red blood cells

52

What kinds of antibodies does a person with type A blood have?

type B

53

How do type B antibodies react to B antigens?

react as if the antigens were pathogens

54

Which blood type is a universal donor?

type O

55

What does a transfusion attempt to replace?

blood loss because of surgery or injury

56

Your body needs oxygen in order to get (blank) from the food you eat

energy

57

What is the process of using oxygen and releasing carbon dioxide and water called?

respiration

58

What is inhalation and exhalation called?

breathing

59

What is the area of the throat that contains the vocal chords?

larynx

60

What are a group of organs that take in oxygen and get rid of carbon dioxide called?

respiratory system

61

What is the main passage into and out of the respiratory system?

nose

62

What is another word for throat?

pharynx

63

What is the use of oxygen by cells to release energy stored in food called?

cellular respiration

64

What is the tube guarded by the larynx called?

trachea

65

What is the tube that connects the trachea to the lungs called?

bronchus

66

What are the smaller branches of bronchi?

bronchioles

67

What are the tiny sacs at the ends of the bronchioles called?

alveoli

68

Name two kinds of muscle involved with breathing

diaphragm, rib muscles

69

When you inhale, the (blank) contracts

diaphragm

70

When the diaphragm contracts, the (blank (two words)) contract and lift the rib cage

rib muscles

71

When you inhale, you take in (blank)

oxygen

72

Oxygen diffuses into (blank (three words))

red blood cells

73

When the oxygen is carried to cells, it is used to release (blank)

energy

74

Cellular respiration produces water and (blank)

carbon dioxide

75

What may trigger asthma?

dust or pollen

76

What causes SARS?

a virus