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The Pathway of Blood Through the Heart

Summarizes how a single drop of blood around the pulmonary and systemic circuits passes through the four chambers of the heart (the right atrium, the right ventricle, the left atrium, and the left ventricle) and is delivered throughout the body tissues. It is important to understand that both atria contract at the same time and both ventricles contract at the same time. Therefore, the heart works as two pumps, with the right and the left side working in a synchronized manner.

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Oxygen-poor systemic blood (also known as deoxygenated blood) enters the right side of the heart through the superior and inferior vena cava. This blood passes from the right atrium through the tricuspid valve to the right ventricle, (this is aided by the contraction of the right atrium). Then, the right ventricle propels blood through the pulmonary semilunar valve into the pulmonary trunk and around the pulmonary circuit for ...

Solution Summary

This solution describes the path of a single drop of blood through the chambers of the heart. It also contains a flowchart of the pathway of blood through the heart.