alleryStart learning →Arteries and veins transport blood in how many distinct circuits?
ATen circuits
BTwo circuits
COne circuit
DFour circuits
Answer & Solution
Correct answer: B. Two circuits
1. Circulation is divided into named loops.
2. Blood leaves the heart and must return to it.
3. Arteries and veins transport blood in two distinct circuits.
4. They are the systemic circuit and the pulmonary circuit.
_Source: OpenStax Anatomy and Physiology 2e (CC BY 4.0), Ch 20 'The Cardiovascular System: Blood Vessels and Circulation', sections 20.1-20.5_
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