Which heart chamber pumps unoxygenated blood out the pulmonary trunk?

1 Answer
Suren Abreu
May 22, 2017

The right ventricle.

Explanation:

After de-oxygenated blood is received in the right atrium from the superior and inferior venae cavae, the blood is pumped through the tricuspid valve into the right ventricle.

The right ventricle then pumps this de-oxygenated blood through the pulmonary artery to the lungs for oxygenation.

This pulmonary artery, also called the pulmonary trunk artery, divides into two pulmonary arteries, one for each lung.

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