The Dublin practice of midwifery / by Henry Maunsell.

  • Henry Maunsell
Date:
1856
Catalogue details

Licence: Public Domain Mark

Credit: The Dublin practice of midwifery / by Henry Maunsell. Source: Wellcome Collection.

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    result of his injections, he iufen-ed further, that these portions had no vascular communication. By others it has been stated, that no passage of injection can be eifected from the uterine vessels into the placenta, except as the result of extrava- sation, and that there are no cells whatsoever in its stmcture, but that it is entirely composed of the foetal vessels. From the best consideration that I have been able to give the subject, this latter view certainly appears to me to be the most correct ; but I am far from thinking that the question has been ultimately set at rest. It is probable that the purposes of the glandulce uterina, or maternal pla- centa of animals, are eflPected in the human womb by a pecidiar development of that portion of the uterine wall to which the placenta is attached, and not by any contrivance in the substance of the latter organ. The testimony with respect to the existence of nerves and lymphatics ia the pla- centa is the same as was mentioned in favoui' of the presence of the same organs ia the funis, viz. Sir E. Home and Dr. Fohmami. Dr. P. asserts that the lymphatics convey nourishing material from the mother through the cord to the iliac glands, and thence into the system of the foetus. The uses of the placenta appear to be in some degree analogous to those of the lungs and stomach of the breathing animal. The blood passes into it from the hypogastric arteries, and,, !■
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