Mechanical contraction of the heart

Question 1: Stroke Volume is:

1. the amount of blood pumped out of the ventricle in each beat (correct)
2. systole and diastole cycle
3. cardiac output x heart rate

Question 2: Cardiac Output is:

1. heart rate x blood pressure
2. stroke volume x heart rate (correct)
3. blood pressure x pulse pressure

Question 3: Pre Load is:

1. the pressure within the ventricle at end of diastole (correct)
2. the pressure in the heart at rest
3. blood flow from the heart to the body

Question 4: After load is:

1. ventricles relaxing after contraction
2. ventricles after polarisation
3. resistance to ventricular contraction

Question 5: The ability of the heart muscle to pump effectively is called:

1. Contractility
2. Automaticity