A textbook of obstetrics . —Normal fully-developed placenta, showing villi in longitudinal and en ss-section (Williams |.. Fig. 87.— Section oi placenta, showing villi with vessels injected (Williams). communication between the placental villi and the maternalblood. By this anatomical arrangement the fetal and maternalblood is, of course, kept separate. The former circulates within THE PLACENTA. 117 the capillary system of the villi ; the latter bathes the exterior ofthe villi. The Fully=developed Placenta.—The placenta at term isa circular mass, measuring about seven inches in diameter,about
A textbook of obstetrics . —Normal fully-developed placenta, showing villi in longitudinal and en ss-section (Williams |.. Fig. 87.— Section oi placenta, showing villi with vessels injected (Williams). communication between the placental villi and the maternalblood. By this anatomical arrangement the fetal and maternalblood is, of course, kept separate. The former circulates within THE PLACENTA. 117 the capillary system of the villi ; the latter bathes the exterior ofthe villi. The Fully=developed Placenta.—The placenta at term isa circular mass, measuring about seven inches in diameter,about two-thirds of an inch to an inch in thickness at the point ofinsertion of the cord, and weighing about sixteen ounces. Upon % >
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
