Heart and Blood Vessels

Question 1

the cardiovascular system includes

Answer 1

heart and blood vessels

Question 2

the cardiovascular system functions to

Answer 2

generate blood pressure, transport blood, exchanges nutrients and wastes at capillaries, and regulates blood flow

Question 3

blood is refreshed in the

Answer 3

lung, kidneys, intestine, and liver

Question 4

lymphatic vessels function

Answer 4

collect excess fluid surrounding tissues and return it to the cardiovascular system

Question 5

pulmonary circuit

Answer 5

sends deoxygenated blood to the lungs to pick up oxygen and get rid of CO2

Question 6

systemic circuit

Answer 6

sends oxygenated blood and nutrients to the body cells and removes wastes

Question 7

pulmonary meaning

Answer 7

lungs

Question 8

deoxygenated meaning

Answer 8

depleted of oxygen

Question 9

where do arteries carry blood

Answer 9

away from the heart

Question 10

arteries are

Answer 10

deep

Question 11

veins are

Answer 11

superficial

Question 12

where do veins carry blood

Answer 12

toward the heart

Question 13

the pulmonary arteries leaving the right ventricle for the lungs carry what type of blood

Answer 13

deoxygenated

Question 14

the pulmonary veins carry what kind of blood

Answer 14

oxygenated

Question 15

in the pulmonary circuit where does blood take up oxygen

Answer 15

the lungs

Question 16

in the systemic circuit where is oxygenated blood distributed to

Answer 16

body tissues

Question 17

what is the main pathway of blood in the body

Answer 17

heart arteries arterioles capillaries venules veins back to the heart

Question 18

arteries and arterioles

Answer 18

carry blood away from the heart

Question 19

what are the three layers of artery and arteriole walls

Answer 19

thin inner epithelium, thick smooth muscle, outer connective tisse

Question 20

arterioles are

Answer 20

small arteries that regulate blood pressure

Question 21

capillaries are

Answer 21

microscopic vessels between arterioles and venules

Question 22

capillaries are made of

Answer 22

one layer of epithelial tissue

Question 23

capillaries form

Answer 23

beds of vessels where exchange with body cells occurs

Question 24

venules are

Answer 24

small veins that receive blood from the capillaries

Question 25

veins carry

Answer 25

blood toward the heart

Question 26

the consists mostly of

Answer 26

cardiac tissue called myocardium

Question 27

heart is surrounded by a sac called

Answer 27

pericardium

Question 28

the two sides of the heart are divided by

Answer 28

septum

Question 29

how many chambers does the heart have

Answer 29

4

Question 30

what are the two sets of valves called

Answer 30

semilunar and atrioventricular valves

Question 31

the wall of the heart has how many layers

Answer 31

3

Question 32

epicardium

Answer 32

composed of serous membrane of CT that forms a protective outer covering of the heart and secretes a serous fluid

Question 33

myocardium

Answer 33

composed of cardiac muscle tissue

Question 34

endocardium

Answer 34

composed of epithelium and CT and contains elastic and collagenous fibers and has blood vessels and pukinje fibers

Question 35

pericardium

Answer 35

encloses the heart and has blood vessels that attach to the heart

Question 36

layers of pericardium

Answer 36

fibrous, visceral, parietal, pericardial cavity, and serous fluid