Questions for Heart as a Pump

Question 1

Respond with the best phrase.

The filling valve for the right ventricle is the __________________ valve.

Answer 1

tricuspid

Question 2

Respond with the best phrase.

The filling valve for the left ventricle is the ___________________ valve.

Answer 2

mitral

Question 3

Respond with the best phrase.

The emptying valve for the right ventricle is the ___________________valve.

Answer 3

pulmonic

Question 4

Respond with the best phrase.

The emptying valve for the left ventricle is the ___________________valve.

Answer 4

aortic

Question 5

Respond with the best phrase.

The P wave of the ECG marks ___________________.

Answer 5

atrial depolarization

Question 6

Respond with the best phrase.

The QRS complex of the ECG marks ___________________.

Answer 6

ventricular depolarization

Question 7

Respond with the best phrase.

The T wave of the ECG marks _________________.

Answer 7

ventricular repolarization

Question 8

Respond with the best phrase.

The change in left ventricular pressure, lowest to greatest, during a typical cardiac cycle is about ______________ times that in the aorta.

Answer 8

3x : 120 vs. 40

Question 9

Respond with the best phrase.

Left atrial contraction directly results in the closure of which cardiac valve?

Answer 9

None

Question 10

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Left ventricular contraction directly results in the closure of which cardiac valve?

Answer 10

mitral

Question 11

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The aortic valve opens shortly after activation of which excitable cardiac node?

Answer 11

AV node

Question 12

Respond with the best phrase.

The 1st heart sound follows closure of which ventricular valves?.

Answer 12

tricuspid and mitral

Question 13

Respond with the best phrase.

Which heart sound is caused by the opening of the pulmonic and aortic valves?

Answer 13

None–valve opening does not create a sound.

Question 14

Respond with the best phrase.

The volume of the ventricle at the time of the QRS is called the _________________ .

Answer 14

End diastolic volume

Question 15

Respond with the best phrase.

Ventricular repolarization results in what ECG wave?

Answer 15

T wave

Question 16

Respond with the best phrase.

The most rapid flow rate out of each ventricle occurs between which ECG waves?

Answer 16

QRS and T waves

Question 17

Respond with the best phrase.

The cardiac phase between the QRS wave and aortic valve opening is called ________________ .

Answer 17

isovolumetric contraction

Question 18

Respond with the best phrase.

Right ventricular muscle shortening begins when the ______________ valve opens.

Answer 18

pulmonic

Question 19

Respond with the best phrase.

The cardiac phase between the closure of the pulmonic and the opening of the tricuspid valves is called ______________________.

Answer 19

isovolumetric relaxation

Question 20

Respond with the best phrase.

The portion of the cardiac cycle from closure of the aortic valve to the QRS wave is called ventricular ___________________.

Answer 20

diastole

Question 21

Respond with the best phrase.

The portion of the cardiac cycle from the QRS wave to the closure of the aortic valve is called ventricular ________________.

Answer 21

systole

Question 22

Respond with the best phrase.

The left ventricular volume at the time the aortic valve closes is called the ________________.

Answer 22

end systolic volume

Question 23

Respond with the best phrase.

The phases of the cardiac cycle when all valves are closed are termed _____________.

Answer 23

isovolumetric

Question 24

Respond with the best phrase.

The phases of the cardiac cycle when all valves are open are termed ____________.

Answer 24

imaginary–no such phase exists

Question 25

# Respond with the best phrase. During systole, left ventricular wall tension is lowest when the _______________ valve closes.

Answer 25

aortic

Question 26

# Respond with the best phrase. Arterial diastolic pressure occurs when the ______________________ valve opens.

Answer 26

aortic

Question 27

# Respond with the best phrase. In any given cycle, left ventricular preload is greatest when the ___________________ valve closes.

Answer 27

mitral

Question 28

# Respond with the best phrase. Right ventricular afterload is first determined when the ______________ valve opens.

Answer 28

pulmonic

Question 29

# Respond with the best phrase. Left ventricular EDV represents ____________________ for ventricular muscle.

Answer 29

preload

Question 30

# Respond with the best phrase. For any given cycle, stroke volume is defined as the volume difference_______________ .

Answer 30

EDV minus ESV

Question 31

# Respond with the best phrase. Ventricular filling follows the __________________ curve on the PV plot.

Answer 31

passive relaxation

Question 32

# Respond with the best phrase. For any preload and afterload, the ESPV curve on the PV plot locates where any systolic shortening must ________.

Answer 32

end

Question 33

# Respond with the best phrase. For any given cycle, the end of systolic shortening is determined by the location of the _________________________ curve.

Answer 33

ESPV, end-systolic pressure-volume

Question 34

# Respond with the best phrase. All else equal, an increase in Pa diastolic would ___________________ stroke volume.

Answer 34

decrease

Question 35

# Respond with the best phrase. All else equal, an increase in contractility would ___________________ stroke volume.

Answer 35

increase

Question 36

# Respond with the best phrase. All else equal, an increase in ventricular end diastolic pressure would ___________________ stroke volume.

Answer 36

increase

Question 37

# Respond with the best phrase. For any given cycle, a decrease in Pa diastolic would __________________ ESV.

Answer 37

decrease

Question 38

# Respond with the best phrase. If ESV decreases when EDV and Pa diastolic are unchanged, you would guess that _____________________ has increased.

Answer 38

contractility

Question 39

The variation of peak developed cardiac muscle tension with the frequency of activation is called _________.

Answer 39

Treppe or the staircase phenomenon.