Cardiac Physiology: Pump Function & Heart Valves

Question 1

The (left/right) heart feeds the pulmonary circulation

Answer 1

right

Question 2

The (left/right) heart feeds the systemic circulation

Answer 2

left

Question 3

What valve is between the right atria and right ventricle?

Answer 3

Tricuspid

Question 4

What valve is between the left atria and left ventricle?

Answer 4

Mitral

Question 5

What are the semilunar valves?

Answer 5

Pulmonary and aortic valve

Question 6

What are the AV valves?

Answer 6

Tricuspid and Mitral

Question 7

Arteries transfer oxygenated blood while veins transfer deoxygenated blood. What artery/vein does not follow this?

Answer 7

Pulmonary artery/veins of heart

Question 8

Which coronary artery supplies oxygen to the bottom portion of both ventricles and back of septum?

Answer 8

Right coronary

Question 9

The right coronary artery supples oxygen where?

Answer 9

Botton of both ventricles and back of septum

Question 10

Which coronary artery supplies oxygen to the front and bottom of left of left ventricle and front of septum?

Answer 10

Left coronary

Question 11

The left coronary artery supplies oxygen where?

Answer 11

Front and bottom of left ventricle and front of septum

Question 12

When all valves are closed, ventricular volume is constant and the phase is called…?

Answer 12

Isovolumetric

Question 13

The P wave of the electrocardiogram is represented as..

Atrial systole
Isovolumic contraction
Ejection
Isovolumic relaxation
Rapid inflow

Answer 13

Atrial systole

Question 14

When do the A-V valves close during the cardiac cycle?

Answer 14

When isovolumic contraction begins

Question 15

When do the aortic valves open during the cardiac cycle?

Answer 15

When isovolumic contraction ends

Question 16

When do the A-V valves open during the cardiac cycle?

Answer 16

When isovolumic relaxation ends

Question 17

When do the aortic valves close during the cardiac cycle?

Answer 17

When isovolumic relaxation begins

Question 18

During isovolumic contraction, what happens to aortic and ventricular pressure?

Answer 18

Pressure goes up for both. Ventricular pressure significantly rises from its original spot

Question 19

During isovolumic contraction, what happens to ventricular volume?

Answer 19

Doesn’t change

Question 20

What kind of pressure in the cardiac cycle stay almost constant?

Answer 20

Atrial pressure

Question 21

What happens to both aortic and ventricular pressure during ejection of cardiac cycle?

Answer 21

Both rise, peak, then decrease

Question 22

During isovolumic relaxation, what happens to both aortic and ventricular pressure?

Answer 22

Aortic pressure barely increases, but ventricular pressure decreases significantly

Question 23

During ejection, what happens to ventricular volume?

Answer 23

Decreases significantly

Question 24

During isovolumic relaxation, what happens to ventricular volume?

Answer 24

Doesn’t change

Question 25

During diastole (rapid inflow) what happens to aortic and ventricular pressure?

Answer 25

Aortic pressure decreases gradually until next isovolumic contraction, but ventricular pressure stays constant until next atrial systole

Question 26

What happens to ventricular pressure during atrial systole?

Answer 26

Increases slightly

Question 27

What happens to ventricular volume during atrial systole?

Answer 27

Increases slightly

Question 28

Isovoumetric ventricular contraction begins after the onset of ____ wave

Answer 28

QRS

Question 29

First heart sound is after _______

Answer 29

closure of AV valves

Question 30

Isovolumetric ventricular relaxation is at the end of ___ wave

Answer 30

T

Question 31

How do you calculate mean arterial pressure?

Answer 31

2/3 diastolic pressure + 1/3 systolic pressure

Question 32

How do you calculate pulse pressure

Answer 32

Difference between systolic and diastolic pressure

Question 33

How do you calculate cardiac output?

Answer 33

Stroke volume * heart rate

Question 34

How do you calculate ejection fraction?

Answer 34

Stroke volume / end diastolic volume