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Journal of Experimental Biology 28,32-40 (1951)
Published by Company of Biologists 1951

The Development of Motor Responses in the Stomach of the Foetal Sheep

D. L. DUNCAN 1 and A. T. PHILLIPSON 1

1 Rowett Research Institute, Bucksburn, Aberdeenshire

The state of motor activity of the stomach was studied in a series of foetal sheep. The non-functional period was found to end between the 50th and 60th days of gestation. Sustained activity was preceded by short periods of myogenic and neuromotor activity, and was not in evidence until the 70th day. Foetal swallowing commenced soon after this, but the pattern of suckling behaviour developed gradually over an extended period. The motor mechanisms mediated by the vagus were studied by section and electrical stimulation of the nerve.

Submitted on June 19, 1950




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R. M. Bradley and C. M. Mistretta
Swallowing in Fetal Sheep
Science, March 9, 1973; 179(4077): 1016 - 1017.
[Abstract] [PDF]


© The Company of Biologists Ltd 1951