conus arteriosus
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Related to conus arteriosus: aortic vestibule
conus arteriosus
[′kō·nəs är‚tir·ē′ō·səs] (embryology)
The cone-shaped projection from which the pulmonary artery arises on the right ventricle of the heart in man and mammals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.