alleryWhich route correctly represents human pulmonary circulation?
ARight ventricle → lungs → left atrium
BLeft ventricle → lungs → right atrium
CRight atrium → body → left ventricle
DLeft atrium → body → right ventricle
Answer & Solution
Correct answer: A. Right ventricle → lungs → left atrium
The right ventricle sends blood through the pulmonary artery to the lungs; pulmonary veins return it to the left atrium. Systemic circulation runs from the left ventricle through body tissues to the right atrium. Blood passes through the heart twice per complete circuit.
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