File:Carpenter's principles of human physiology (1881) (14595060058).jpg

Identifier: carpentersprinci00carp (find matches)
Title: Carpenter's principles of human physiology
Year: 1881 (1880s)
Authors: Carpenter, William Benjamin, 1813-1885 Meneses, Henry Power
Subjects: Human physiology Physiology
Publisher: London : J. & A. Churchill

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reflexions of thesame membrane. All the bands which connect and tie down the tufts are formedof the same elements as the envelopes of the tufts themselves ; namely a fold otthe lining membrane of the decidual sinuses, and a layer of the cellular decidua. the decidua serotina does not form a complete and continuous membranous septum betweenthe uterus and placenta, but that its continuity is in various localities interrupted to allow ofthe penetration of many of the placental villi into the utero-placental vessels, into whichthey project free and naked. * Edin. Med. and Surg. Journ., Jan. 1841; and Anat.,Phys., and Pathol. Eesearches,chap. viii. f See Turner, Observations on the Structure of the Human Placenta, in Humphry andTurners Journal of Anatomy and Physiology, vol. vii. 1873, p. 120, in which the litera-ture of the subject will be found. See also Masquelin and Swaen Premieres phases dudeveloppement du Placenta maternel chez le lapin, Archiv. de Biologie (1880), torn. i.pp. 25-44.
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892 OF GENERATION : ACTION OF THE FEMALE. Fig. 325. 714. The Maternal blood is conveyed into the Placental cavity by the curling arteries of the uterus (Fig. 324, c, a, Fig. 325 d); and is receivedback from it into the large veins that are commonly designated as sinuses(Fig. 325, b, b). The utero-placental sinus-system of veins is so relatedto the placenta as to communicate with the interior of the cotyledons, eitherat the outer edge of the placenta, where the so-called circular sinus lies, orwhere the sinuses lie within the inter-cotyledonary decidual dissepiments, orwhere they come into contact with the uterine face of the placenta, close to theplane of entrance of the primary decidual dissepiments into its substance. The communication is notas if the sinuses ter-minated abruptly byopen mouths, as hasalready been de-scribed, but rather bypossessing cribriformapertures in theirwalls as they lie incontact with the pla-centa. From therelation of the sinusesto the margins of thecotyledo

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