aortic ostium

aortic ostium definition - medical

aortic ostium

noun
The opening from the left ventricle of the heart into the ascending aorta, guarded by the aortic valve.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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