A1

Question 1

circ system

Answer 1

nutrients to , waste away from cells, takes hormones to one part, heat, bodily fluids, defense against pathogens

Question 2

arteries

Answer 2

carry blood AWAY from heart, thick, stretch and control amount of blood flowing to diff tissue

Question 3

arterioles

Answer 3

arteries -> arterioles -> capillaries

Question 4

capillaries

Answer 4

nutrient exchange

Question 5

veins

Answer 5

carry blood back to heart, thing, less smooth muscle, larger in diameter than arteries, one way valves

Question 6

one way valves

Answer 6

only allow blood to move towards the heart

Question 7

skeletal muscle

Answer 7

contraction pushes blood in the vein back to heart

Question 8

right side of heart

Answer 8

blood from the body and to the lungs, deoxygenated

Question 9

left side of heart

Answer 9

blood from heart and goes to the body, oxygenated

Question 10

atria

Answer 10

thin wall, gets blood from veins

Question 11

right atrium

Answer 11

receives blood from vena cava (body), and pumps to right ventricle

Question 12

left atrium

Answer 12

receives blood from the pulmonary veins (lungs) and to the left ventricle

Question 13

ventricles

Answer 13

muscular and thick walled, pumps blood to arteries

Question 14

right ventricle

Answer 14

pumps blood to the pulmonary artery (lungs)

Question 15

left ventricle

Answer 15

pumps blood into aorta (body)

Question 16

valves

Answer 16

flaps of tissue that prevent back flow of blood

Question 17

vena cava

Answer 17

carries blood low in O2 and high in CO2 (DO) from body to right atrium

Question 18

pulmonary artery

Answer 18

carries DO blood from heart to lungs

Question 19

pulmonary veins

Answer 19

4 veins that carry oxygenated blood from lungs to the heart

Question 20

aorta

Answer 20

carries oxygenated blood from the heart to the tissues of the body

Question 21

systole

Answer 21

heart (ventricles) contract

Question 22

diastole

Answer 22

heart (ventricles) relax

Question 23

cardiac cycle stage 1

Answer 23

1. atria fills with blood

Question 24

cardiac cycle stage 2

Answer 24

Atria Contract: Blood moves to ventricles as valves open; artery valves close.

Question 25

cardiac cycle stage 3

Answer 25

Ventricles Contract: Atria-ventricle valves close; blood is pushed into arteries.

Question 26

pulmonary circulation

Answer 26

DO blood to the lungs vid pulm artieries, lungs release CO2 and pickup O2, oxygenated blood is carried back to the heart via pulm veins

Question 27

systematic ciculation

Answer 27

vessels that carry blood to and from body cells

Question 28

coronary circulation

Answer 28

supplies blood to the heart muscle

Question 29

blood pressure

Answer 29

normal is 120/80

Question 30

systolic pressure

Answer 30

caused by netricular contraction, blood heading out of heart to body and lungs

Question 31

diastolic pressure

Answer 31

heart relaxed and is filled with blood

Question 32

Atherosclerosis

Answer 32

Buildup of fatty material inside, hypertension -> arteries could rupture or cause blood clots

Question 33

Angina

Answer 33

Chest pain due to poor blood circulation to the heart * Not enough oxygen to the heart

Question 34

heart attack

Answer 34

blockage in the coronary arteries, reducing blood flow and oxygen to heart, causing heart tissue to die. caused by smoking or high cholesterol

Question 35

stroke

Answer 35

blood clot blocks vessel in brain and it ruptures, paralysis on one side, and cause death

Question 36

embolus

Answer 36

clot that dislodges and jams another vessel

Question 37

aneurysm

Answer 37

weak spot in artery and can cause instant death