Cardiovascular System Quiz

Define blood pressure.

What is “cardiac output”?

Describe the factors that influence the cardiac output.

A person has a resting heart rate of 70beats per minute. If the heart has an End Diastolic Volume (EDV) = 150ml and End Systolic Volume (ESV) = 75ml, calculate the cardiac output.

Explain how cardiac output is calculated.

The figure below shows an illustration of the conducting system of the heart. Name the parts A, B, C, D and E.

• Sino Atrial (SA) node

• Atrio Ventricular (AV) node

• AV Bundle (Bundle of His)

• R & L bundle branches

• Purkinje fibres

State the role of the sinoatrial node.

A cardiac cycle comprises of 2 parts: systole and diastole. Explain what happens in the heart during these 2 parts of the cycle.

Draw and label the waveforms of a typical normal electrocardiogram (ECG).

For each part of the ECG, state the corresponding electrical event in the heart.