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How does blood flow through the left side of the heart?

ANSWER

This is how blood flows through left side of the heart:

  • The pulmonary veins empty oxygen-rich blood from the lungs into the left atrium.
  • As the atrium contracts, blood flows from your left atrium into your left ventricle through the open mitral valve.
  • When the ventricle is full, the mitral valve shuts. This prevents blood from flowing backward into the atrium while the ventricle contracts.
  • As the ventricle contracts, blood leaves the heart through the aortic valve, into the aorta and to the body.

From: How Your Heart Works WebMD Medical Reference

SOURCE: National Heart Blood Lung Institute, National Institutes of Health.

Reviewed by James Beckerman on November 8, 2017

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SOURCE: National Heart Blood Lung Institute, National Institutes of Health.

Reviewed by James Beckerman on November 8, 2017

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