Question Set I

Question 1

During which phase of the cardiac cycle do the coronary arteries fill?

Answer 1

Diastole

Question 2

On an ECG, systole is classified as?

Answer 2

Being from the peak of the R wave to the end of the T wave

Question 3

What mechanism is responsible for the closure of valves?

Answer 3

Changes in pressure

Question 4

The innermost layer of the muscle of the heart that has a direct blood/tissue interface is called?

Answer 4

Endocardium

Question 5

The QRS complex in an ECG represents?

Answer 5

Ventricular depolarization

Question 6

What chamber is the lowest pressure chamber?

Answer 6

Right atrium

Question 7

During diastole, which valves would be open?

Answer 7

Atrioventricular

Question 8

What valve separates the largest pressure differential?

Answer 8

Mitral valve

Question 9

On ECG, diastole is classified as?

Answer 9

Being from the end of the T wave to peak of the R wave

Question 10

The P wave in an ECG represents?

Answer 10

Atrial depolarization

Question 11

The T wave in an ECG represents?

Answer 11

Ventricular repolarization