Blood, the heart, circulation and respiration

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Question 4
Hard

The table below shows the minimum and maximum pressures measured in different chambers and associated blood vessels of the human heart during a single cardiac cycle.

LocationMinimum pressure (mmHg)Maximum pressure (mmHg)
Right Atrium08
Right Ventricle025
Pulmonary Artery825
Left Atrium012
Left Ventricle0120
Aorta80120

Using the data in the table and your biological knowledge, explain how the structural features of the human heart are adapted to generate, withstand, and control these pressure differences, and why this is necessary for efficient dual circulation.

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Blood, the heart, circulation and respiration Questions

  1. GCSE
  2. /Biology
  3. /Blood, the heart, circulation and respiration