The heart and circulation

What type of circulatory system is the heart at the centre of?

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During exercise, a swimmer has a cardiac output of 7000 ml / min and an average stroke volume of 70 ml.

Which one of the following is the swimmer’s heart rate during exercise?

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Describe the role of the tricuspid valve.

Name the heart chamber that receives blood from the vena cava.

The bicuspid and tricuspid valves are in the heart.

Describe the purpose of these valves.

Other than the bicuspid and tricuspid valves, identify another valve in the heart.

The cardiovascular system is a double-circulatory system that involves systemic and pulmonary circulation.

Describe the following types of circulation:

Systemic circulation........

Pulmonary circulation........

Is blood that flows through the vena cava oxygenated or de-oxygenated ?

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Describe the structure of the vena cava.

Name the artery that carries deoxygenated blood to the lungs.

Fig. 4 shows a diagram of the heart.

Using Fig. 4, draw an X to indicate the location of the bicuspid valve.

Valves help prevent the backflow of blood.

The bicuspid valve prevents blood flowing back into which chamber of the heart?

At rest, Raheem has a heart rate of 70 bpm and a stroke volume of 80 ml.

Which one of the following is Raheem’s cardiac output at rest? Put a tick (✓) in the box next to the correct answer.

Define heart rate.

Stroke volume is:

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Name the blood vessel that transports blood from the left ventricle towards the muscles.