SAT Subject Biology Practice Question 58: Answer and Explanation

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Question: 58

2. What sequence is followed by the path of blood from the heart?

A. Vena cava, right atrium, right ventricle, aorta, lungs
B. Lungs, pulmonary vein, right atrium, right ventricle, aorta
C. Vena cava, right atrium, right ventricle, lungs, pulmonary vein
D. Vena cava, left atrium, left ventricle, lungs, pulmonary artery
E. Left ventricle, lungs, pulmonary vein, pulmonary artery, right atrium

Correct Answer: C

Explanation:

Deoxygenated blood collects in the vena cava, which feeds into the right atrium of the heart. Blood from the right atrium enters the right ventricle, where it is pumped to the lungs via the pulmonary arteries. Oxygen-rich blood returns to the heart via the pulmonary veins.

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