. Chambers's encyclopedia; a dictionary of universal knowledge for the people. i^^fl^^P.^ ^. Fig. 3.—Uterus of a Cow in the middle of Pregnancy, laidopen :V, vagina; u, uterus ; ch, chorion; c\ uterine cotyledons ;c^, fcetal cotyledons. of the mucous membrane of the uterus; while inthe cow, on the contrary, they are concave, and litupon corresponding convexities of the uterus. The remarks which have been made on the func-tions of the human placenta, are equally applicableto all placental mammals generally. The diseases of the human placenta had not beenstudied with any accuracy, until the subj


. Chambers's encyclopedia; a dictionary of universal knowledge for the people. i^^fl^^P.^ ^. Fig. 3.—Uterus of a Cow in the middle of Pregnancy, laidopen :V, vagina; u, uterus ; ch, chorion; c\ uterine cotyledons ;c^, fcetal cotyledons. of the mucous membrane of the uterus; while inthe cow, on the contrary, they are concave, and litupon corresponding convexities of the uterus. The remarks which have been made on the func-tions of the human placenta, are equally applicableto all placental mammals generally. The diseases of the human placenta had not beenstudied with any accuracy, until the subject wastaken up by Piofessor Simpson. This distinguishedphysician and subsequent observers have ascer-tained that the placenta is liable to (1) congestion,ending in the effusion of blood into the substanceof the organ upon its surfaces, or between themembranes; (2) Inflammation, giving rise to adhe-sions, or termuiating in suppuration, which mayoccasion very serious constitutional disturbances;(3) Partial or entire hypertrophy or atrophy; and(4), Fatty degeneration, affecting its small


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