yolk stalk


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yolk stalk

n.
A narrow ductlike part that connects the yolk sac to the middle of the digestive tract of an embryo.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

yolk′ stalk`


n.
a tubular connection between the yolk sac and the embryonic gut in the developing embryo.
[1895–1900]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The omphalomesenteric duct remnant is one of the rare congenital anomalies associated with the primitive yolk stalk. Most omphalomesenteric duct remnants tend to be Meckel's diverticula, while the occurrence of a persistent omphalomesenteric duct is infrequent.
Omphalomesenteric duct remnants (vitelline duct anomalies) have been reported to be congenital anomalies associated with the primitive yolk stalk. (1,2) The omphalomesenteric duct is the embryonic structure connecting the primary yolk sac to the embryonic midgut.
In the process of hatching, yolk is utilized by the chick either through endocytosis of its contents into circulation or by transportation through yolk stalk into small intestine (Sklan, 2003).