conus-arteriosus

co·nus ar·te·ri·o·sus

[koh-nuhs ahr-teer-ee-oh-suhs]
noun, plural co·ni ar·te·ri·o·si
the most anterior part of the simple tubular heart of lower vertebrates and embryos of higher vertebrates, leading into the artery that leaves the heart; in mammals it forms a part of the upper wall of the right ventricle, in which the pulmonary artery originates.
Also called co·nus.


Origin:
1855–60; < Neo-Latin: literally, arterial cone. See arterio-, cone

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Conus-arteriosus is always a great word to know.
So is quincunx. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
American Heritage
Medical Dictionary

conus arteriosus conus ar·te·ri·o·sus (är-tēr'ē-ō'səs)
n.
A conical extension of the right ventricle in the heart, from which the pulmonary artery originates. Also called arterial cone, infundibulum.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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