Which of the following cardiovascular circuits carry blood from the heart to the lungs?

Question

BlackTom AI · Accepted Answer

To analyze the question, we consider the basic arrangement of the cardiovascular system and the path blood takes.
Option 1: Systemic Circuit. This circuit carries blood from the heart to the rest of the body and back. It does not port blood to the lungs, so it is not the circuit that supplies the lungs with blood.
Option 2: Pulmonary Circuit. This circuit specifically involves the right side of the heart pumping deoxygenated blood to the lungs via the pulmonary arteries, where gas exchange occurs, and then returning oxygenated blood to the left atrium through the pulmonary veins. This is the circuit that routes blood to the lungs.
Option 3: Both. While the heart utilizes two separate circuits (systemic and pulmonary), the question asks for circuits that carry blood from the heart to the lungs. The systemic circuit does not carry blood to the lungs, so selecting both would be inaccurate for this particular criterion.
Option 4: None of the Above. Given that there is a circuit that does carry blood from the heart to the lungs (the pulmonary circuit), this option would be incorrect.
In summary, the pulmonary circuit uniquely describes the pathway where blood moves from the heart to the lungs for oxygenation and back, distinct from the systemic circuit which serves the body tissues. Understanding this division clarifies why other options do not fit the criterion of delivering blood specifically to the lungs.

SC5000AS Day 15 - Artery/Vein Quiz

Which of the following cardiovascular circuits carry blood from the heart to the lungs?

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