The Heart

Question 1

which side of the heart is bigger?

Answer 1

left

Question 2

what does the pulmonary artery do?

Answer 2

pumps deoxygenated blood to the lungs

Question 3

what side is the pulmonary artery on?

Answer 3

right side

Question 4

what does the aorta do?

Answer 4

carries oxygenated blood at a high pressure to the whole body

Question 5

what does the valve do?

Answer 5

prevents backflow

Question 6

what do the pulmonary veins do?

Answer 6

oxygenated blood enters through them

Question 7

where does the right side supply?

Answer 7

the lungs

Question 8

where does the left side supply?

Answer 8

the whole body

Question 9

what do the coronary arteries do?

Answer 9

supply the heart with the oxygen it requires

Question 10

where does deoxygenated blood enter the right atrium through?

Answer 10

the vena cava

Question 11

where does oxygenated blood enter the left atrium?

Answer 11

through the pulmonary vein

Question 12

how does blood move to a ventricle?

Answer 12

through a valve

Question 13

where does blood travel to the lungs through?

Answer 13

the pulmonary artery

Question 14

where does the blood travel to the whole body through?

Answer 14

the aorta

Question 15

what is a double pump system?

Answer 15

where blood is pumped to the lungs by the right side of the heart and blood is pumped to the body by the left side of the heart

Question 16

which direction do arteries go?

Answer 16

away from the heart

Question 17

how is blood carried around the body?

Answer 17

blood vessels

Question 18

what type of blood do arteries carry?

Answer 18

oxygenated blood at a high pressure

Question 19

what is the lumen?

Answer 19

the hole in the middle of the artery

Question 20

what is the lumen lined with?

Answer 20

smooth endothelial cells that reduce friction

Question 21

what type of blood do the capillaries carry?

Answer 21

oxygenated and deoxygenated

Question 22

what is the structure of capillaries?

Answer 22

tiny blood vessels with narrow lumens to slow blood down

Question 23

how do capillaries allow diffusion?

Answer 23

small holes in their walls

Question 24

what type of blood do veins carry?

Answer 24

deoxygenated blood

Question 25

where do veins carry blood to?

Answer 25

from capillaries back to the heart and lungs

Question 26

why is the blood in veins at a low pressure?

Answer 26

it has lost its oxygen and left the heart a while ago

Question 27

what are platelets

Answer 27

cell fragments essential to blood clotting

Question 28

what are white blood cells

Answer 28

cells that defend the body against disease by destroying bacteria

Question 29

what are red blood cells

Answer 29

cells that have no nucleus to transport oxygen around the body

Question 30

what is plasma

Answer 30

a liquid that transports the other blood components

Question 31

what an be transported by plasma

Answer 31

urea
hormones
vitamins
amino acids
antibodies
enzymes
glycerol
protein
water
carbon dioxide

Question 32

what is cardiac output?

Answer 32

amount of blood the heart pumps in one minute

Question 33

cardiac output equation

Answer 33

heart rate x stroke volume

Question 34

factors that effect heart health

Answer 34

diet
exercise
drugs alcohol and smoking

Question 35

coronary heart disease effects on the body

Answer 35

narrows the arteries
reduces blood travelling through the coronary arteries
reduces the amount of oxygen to the heart
heart cells die

Question 36

what is coronary heart disease

Answer 36

layers of fatty material build up inside the coronary arteries

Question 37

what is a faulty heart valve

Answer 37

valves may not fully open or the heart valve may develop a leak