Match the organ to the number showing the order of blood flow in the circulatory system.

Biology

1 answer:

trasher [3.6K]3 years ago

3 0

Answer:

What sends oxygenated blood back to the heart from the lungs?

Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

Explanation:

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