alleryWhich blood vessel carries deoxygenated blood from the body back to the heart?
APulmonary vein from lungs
BSuperior and inferior vena cava
CAorta from the heart only
DHepatic artery to liver only
Answer & Solution
Correct answer: B. Superior and inferior vena cava
1. Deoxygenated blood from the body returns through the venae cavae.
2. Superior vena cava drains the head and upper body.
3. Inferior vena cava drains the lower body.
4. Both empty into the right atrium.
_Source: Selina Concise Biology Class 10, Ch 7 The Circulatory System (Mistral OCR'd PDF), section on main vessels_
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