Abstract
A unique feature of mammalian reproduction is the prolonged protective period afforded to the young, which often extends for years after birth. During the earliest stages of critical development, maximum protection is given by retaining the fetus within the mother. Intrauterine pregnancy marked a major evolutionary departure from previous modes of reproduction, requiring anatomic and physiologic adjustments on the part of the mother and fetus. The development of the placenta by the fetus is unique among these adjustments in that the sole function of this organ is to make intrauterine pregnancy possible.
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References
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Dancis, J., and Schneider, H., 1975, Physiology: Transfer and barrier function, in: The Placenta and Its Maternal Supply Line (P. Gruenwald, ed.), Medical and Technical Publishing Co., Lancaster, England, and University Park Press, Baltimore.
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© 1978 Plenum Publishing Corporation
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Dancis, J. (1978). The Placenta: An Overview. In: Stave, U. (eds) Perinatal Physiology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-2316-7_2
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DOI: https://doi.org/10.1007/978-1-4684-2316-7_2
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-2318-1
Online ISBN: 978-1-4684-2316-7
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