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Science 9 March 1973:
Vol. 179. no. 4077, pp. 1016 - 1017
DOI: 10.1126/science.179.4077.1016
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Articles

Swallowing in Fetal Sheep

Robert M. Bradley 1 and Charlotte M. Mistretta 1

1 Department of Oral Biology, School of Dentistry, University of Michigan, Ann Arbor 48104

Swallowing was measured in fetal sheep by using electromagnetic flowmeter heads chronically implanted in the fetal esophagus. The fetus swallows 20 to 200 milliliters of amniotic fluid in two to seven discrete episodes per day. The episodes are 1 to 9 minutes in duration and occur at seemingly random intervals. Swallowing is influenced by the condition of the fetus and may be the first manifestation of eating and drinking behavior.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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In Utero Development of Fetal Thirst and Appetite: Potential for Programming.
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Reproductive Sciences 11, 123-130
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Development of ingestive behavior.
M. G. Ross and M. J. M. Nijland (1998)
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Assessments of Fetal Swallowred Volume: Tracer Disappearance Versus Esophageal Flow.
O. A. Ogundipe, L. K. Kullama, L. Day, and M. G. Ross (1994)
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