The Fetal Circulation and Its Alteration at Birth

  • S. Zoe Walsh
  • John Lind


The great inaccessibility of the fetus and its placenta in situ has made it necessary to rely on animal experimentation. These studies have been invaluable in delineating many aspects of physiology and in pinpointing areas for future research in man. The conditions under which they have been performed however, have often not been physiologic. Development of the chronic fetal preparation has added a new dimension, but it is important to remember that “there is more variation throughout the mammalian order in reproductive physiology than in the physiology of any other body function.”(118)


Portal Vein Umbilical Vein Pulmonary Vascular Resistance Newborn Infant Pulmonary Arterial Pressure 
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Copyright information

© Plenum Publishing Corporation 1978

Authors and Affiliations

  • S. Zoe Walsh
    • 1
    • 2
  • John Lind
    • 1
    • 2
  1. 1.Department of PediatricsKarolinska HospitalSweden
  2. 2.Wenner-Gren Research LaboratoryStockholmSweden

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