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Multiple Choice
Which best describes the flow of blood through the pulmonary circuit?
A
Blood flows from the right atrium to the lungs and then to the left ventricle.
B
Blood flows from the left ventricle to the lungs and then to the right atrium.
C
Blood flows from the right ventricle to the lungs and then to the left atrium.
D
Blood flows from the left atrium to the lungs and then to the right ventricle.
Verified step by step guidance
1
Understand the role of the pulmonary circuit: It is responsible for carrying deoxygenated blood from the heart to the lungs and returning oxygenated blood back to the heart.
Identify the starting point of the pulmonary circuit: Blood begins its journey in the right ventricle, which pumps deoxygenated blood into the pulmonary arteries.
Trace the path to the lungs: The pulmonary arteries carry the blood to the lungs, where gas exchange occurs, and the blood becomes oxygenated.
Determine the return path to the heart: Oxygenated blood returns from the lungs via the pulmonary veins.
Identify the endpoint of the pulmonary circuit: The pulmonary veins deliver the oxygenated blood to the left atrium of the heart, completing the circuit.