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Question 4[5 marks]
Describe and explain how the heart pumps blood around the body. Refer to the cardiac cycle in your answer.

The heart is made of two sides, the left and the right. The right side pumps blood to the lungs to pick up oxygen. The left side pumps oxygenated blood around the body.

The atria contract first pushing blood into the ventricles. Then the ventricles contract which pushes the blood out. Valves stop blood going backwards. The aorta carries blood away from the left ventricle.

This is called the cardiac cycle and it happens continuously to keep blood flowing.

Highlight AOs
AO1AO2AO3

The heart is made of two sides, the left and the right. The right side pumps blood to the lungs to pick up oxygen. The left side pumps oxygenated blood around the body.

The atria contract first pushing blood into the ventricles. Then the ventricles contract which pushes the blood out. Valves stop blood going backwards. The aorta carries blood away from the left ventricle.

This is called the cardiac cycle and it happens continuously to keep blood flowing.

Score
3 / 5
Sent to student
What went well
  • Correct pulmonary circulation
  • Accurate cardiac cycle sequencing
  • Good named vessel recall (aorta)
To improve
  • Name specific valves (AV & semilunar)
  • Use 'atrial / ventricular systole'
  • Link cardiac cycle to oxygen demand
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