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Biology of Reproduction, Vol 15, 492-496, Copyright © 1976 by Society for the Study of Reproduction

Correlation Between Intraluminal Pressure of the Oviduct and the Electrical Activity of the Longitudinal Peritoneal Muscle in the Rabbit

MARIA ISABEL GONZALEZ de VARGAS 1, ANTTI TALO 2, , and BARRIE J. HODGSON 3

1 Center for Research and Training in Reproductive Biology and Voluntary Regulation of Fertility and the Departments of Obstetrics and Gynecology, The University of Texas Health Science Center at San Antonio 7703 Floyd Curl Drive San Antonio, Texas 78284
2 Department of Zoology, University of Turku, SF-20500 Turku 50, Finland.
3 Center for Research and Training in Reproductive Biology and Voluntary Regulation of Fertility and the Departments of Obstetrics and Gynecology, and Pharmacology The University of Texas Health Science Center at San Antonio 7703 Floyd Curl Drive San Antonio, Texas 78284


Correlations between the electrical activity of the longitudinal peritoneal muscle which surrounds the oviduct and the intraluminal pressure of the isthmus have been studied in vivo in the rabbit. Teflon coated wire electrodes implanted in the longitudinal peritoneal muscle were used to measure electrical activity and balloon tipped catheters to measure intraluminal pressure. Multiple spikes of electrical activity are recorded in the peritoneal muscle simultaneously with bursts of increase intraluminal pressure. The results suggest that the burst activity observed in intraluminal pressure results from contractions of the longitudinal peritoneal muscle rather than from contractions of the oviduct itself.

Note:
ACKNOWLEDGMENTS The authors are grateful to Professor Carl J. Pauerstein for revising the manuscript, and Dr. C. Spilman for supplying the balloons used in this study.

Submitted on May 6, 1976
Accepted on July 1, 1976






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Copyright © 1976 by the Society for the Study of Reproduction.