Morphological Determinants in O2-Transfer across the Human and Rhesus Hemochorial Placenta

  • Uwe E. Freese
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 191)


The transfer of gases across the membranes of the hemochorial placenta is accomplished by simple diffusion and therefore, ought to be a simple process. In fact, however, the determination of rate, time, sites, efficiency and mode of transfer are extremely difficult to assess because of the iarge number of variables involved in this process and because of technical obstacles.


Maternal Blood Spiral Artery Center Space Homogeneous Pressure Topographical Relationship 
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Copyright information

© Plenum Press, New York 1973

Authors and Affiliations

  • Uwe E. Freese
    • 1
  1. 1.Dept. of Ob.-Gyn., Pritzker Sch. of MedicineUniversity of ChicagoUSA

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