Bayliss myogenic response in the isolated ductus arteriosus of guinea-pig and rabbit fetuses
- 7 Downloads
Isolated ductus arteriosus responds by marked constriction to increases in perfusion pressure. If, however, these increases exceed 90 mm Hg-130 mm Hg, the vessel suddenly dilates and its responsiveness becomes depressed. The importance of these findings in postnatal closure of ductus arteriosus is discussed.
KeywordsPerfusion Pressure Myogenic Response Rabbit Fetus Marked Constriction Postnatal Closure
- 2.D.E. Cassels, in: The ductus Arteriosus, p.75. Charles C. Thomas Publisher, Springfield 1973.Google Scholar
- 4.G.S. Dawes, in: Foetal and Neonatal Physiology, p. 184. Year Book Medical Publisher, Chicago 1969.Google Scholar
- 6.W.M. Bayliss, J. Physiol.28, 220 (1902).Google Scholar
- 8.M. Krigka and V. Kovalčik, Folia Fac. reed. Univ. Com. Bratisl.11, 145 (1973).Google Scholar