A textbook of obstetrics . Fig. 154.—Thickened decidua,forming cast of uterine cavity. Cavityempty 1 Hodge Obstetrical Collection,University of Pennsylvania). Fig- 155- — An embryo in its amni-otic sac 1 from the Hodge Obstetrical Col-lection of the University of Pennsylvania). the embryo, enveloped by its amnion, is extruded without thedecidua and chorion, or as the embryo, its delicate umbilicalcord being ruptured, is expelled alone. The appearance of theembryo will, of course, vary with the different periods of preg-nancy : if still inclosed in its amni-otic sac, a thin-walled, transparentv
A textbook of obstetrics . Fig. 154.—Thickened decidua,forming cast of uterine cavity. Cavityempty 1 Hodge Obstetrical Collection,University of Pennsylvania). Fig- 155- — An embryo in its amni-otic sac 1 from the Hodge Obstetrical Col-lection of the University of Pennsylvania). the embryo, enveloped by its amnion, is extruded without thedecidua and chorion, or as the embryo, its delicate umbilicalcord being ruptured, is expelled alone. The appearance of theembryo will, of course, vary with the different periods of preg-nancy : if still inclosed in its amni-otic sac, a thin-walled, transparentvesicle may be found floating in theblood or imbedded in a clot, andwithin the sac the embryo is seenfloating in the liquor amnii. Inother cases the ovum resemblesa ball of flesh, which, on beingopened, discloses an embryo con-fined within a sac with very thickwalls, composed mainly of greatlyhypertrophied decidua. Or, again, the substance expelled from the uterus may be a fleshy mass,the deciduous membrane, in shape a
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
