Multiple choice

Which of the following does not characterise the cardiovascular system of the body?

  1. The cardiovascular system distributes electrolytes to the body cells and nullifies thermoregulation.

  2. Blood re-enters the heart through the vena cave

  3. Perfusion of the systemic circulation requires a much higher pressure.

  4. The systemic and pulmonary circulations are perfused in series.

  5. The elastic arteries are the aorta and its major branches.
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A Correct answer
Explanation

The key functions of the cardiovascular system are distribution of O2, water, electrolytes and nutrients to all body tissues, transportation of CO2 and metabolic waste products from the tissues to the lungs and kidneys and thermo regulation.

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