aortic arches
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aortic arch
noun Embryology.
one member of a series of paired curved blood vessels that arise in the embryo from the ventral aorta, pass around the pharynx through the branchial arches, and join with the dorsal aorta to form the great vessels of the head and neck.
Origin:
1900–05
1900–05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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American Heritage
Medical Dictionary
aortic arch n.
The curved portion between the ascending and descending portions of the aorta, lying behind the manubrium and giving rise to the brachiocephalic trunk, the left common carotid, and the left subclavian arteries. Also called arch of aorta.
Any of several pairs of arterial channels encircling the embryonic pharynx in the mesenchyme of the branchial arches.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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00:10
Aortic_arches
is always a great word to know.
So is ninnyhammer. Does it mean:
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| a fool or simpleton; ninny. |
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