Question

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what happens after the right ventricle pumps blood into each lung?
b) fresh oxygenated blood flows into the left atrium
a) old blood flows into the right atrium

Explanation:

After the right ventricle pumps blood into the lungs, gas exchange occurs in the lungs. Oxygen is picked up by the blood, and carbon dioxide is released. The freshly oxygenated blood then flows back to the heart. According to the circulatory pathway, oxygenated blood from the lungs flows into the left atrium. Option A refers to de - oxygenated blood (old blood) which flows into the right atrium, but this is not the event immediately following the right ventricle pumping blood to the lungs.

Answer:

B. Fresh oxygenated blood flows into the left atrium