The right ventricle is one of the four chambers (cavities) of the heart. It lies in the lower right portion of this organ, just below the right atrium. It is separated from the left ventricle by the interventricular septum, which is a muscular wall dividing and isolating the two lower chambers from one another. The right ventricle receives deoxygenated blood from the right atrium, with which it is directly communicated through the tricuspid valve.
Anatomical Description
The right ventricle is shaped like a three-sided pyramid, whose base faces upwards, towards the right atrium. The apex, on the other hand, is directed downwards and to the left. The anterior wall of this lower chamber bulges forwards, while its posterior wall is flat. Meanwhile, its medial wall, which is the interventricular septum, bulges into its interior (inwardly), thus being slightly convex from the right perspective.
Function
Like the left, the right ventricle function is to pump blood upon each systolic contraction of the heart. However, there is a difference, because the left lower chamber pumps oxygenated blood that comes from the lung into the rest of the body to supply every tissue and organ with oxygen, while the right ventricle pumps deoxygenated blood into the lungs. This deoxygenated blood exits the right ventricle through the semilunar valve into the pulmonary artery.
Below, image of human heart, showing the left and right ventricle.
