Outline the difference between pulmonary and systemic circulation. (3 marks)
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Pulmonary Circulation:
- Moves blood between the heart and lungs for gas exchange.
- Carries deoxygenated blood from the right ventricle to the lungs via the pulmonary artery.
- Returns oxygenated blood to the left atrium via pulmonary veins.
Systemic Circulation:
- Moves blood between the heart and body tissues.
- Carries oxygenated blood from the left ventricle to the body via the aorta.
- Returns deoxygenated blood to the right atrium via the venae cavae.
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Sample Answer
Pulmonary Circulation:
- Moves blood between the heart and lungs for gas exchange.
- Carries deoxygenated blood from the right ventricle to the lungs via the pulmonary artery.
- Returns oxygenated blood to the left atrium via pulmonary veins.
Systemic Circulation:
- Moves blood between the heart and body tissues.
- Carries oxygenated blood from the left ventricle to the body via the aorta.
- Returns deoxygenated blood to the right atrium via the venae cavae.