The principles and practice of obstetrics . erv-able. They are of an arbor-escent character, and so abund-ant that they give to the wholeovum a delicate velvety or spon-goid appearance. Hence, weread of the spongioles and the shaggy surfaceof the chorion. The ovum, thus constituted, appearing at the orificeof the Fallopian tube, comes in contact with the mem-brana decidua lining the cavity of the uterus. Ac-cording to the views of those who maintain that thismembrana decidua is a new membrane, without open-ings, the ovum is arrested upon the external surfaceof the decidua; as the ovum grows, t
The principles and practice of obstetrics . erv-able. They are of an arbor-escent character, and so abund-ant that they give to the wholeovum a delicate velvety or spon-goid appearance. Hence, weread of the spongioles and the shaggy surfaceof the chorion. The ovum, thus constituted, appearing at the orificeof the Fallopian tube, comes in contact with the mem-brana decidua lining the cavity of the uterus. Ac-cording to the views of those who maintain that thismembrana decidua is a new membrane, without open-ings, the ovum is arrested upon the external surfaceof the decidua; as the ovum grows, that portion of thedecidua to which it is attached grows with it, so thatas the ovum continually encroaches upon the cavity ofthe uterus during its development, it becomes completelyinvested with the decidua. This covering is, therefore,a new production, developed over the ovum, the ute-rus still remaining completely lined by the originaldecidua. This new portion, thus reflected over theovum, is termed the decidua reflexa. Should these tis-. Ovuiu of five weeks. I; E S T A T10N. cammed at the Bixth or eighth week d the ovum will be found projecting into the Kg. LM.
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Keywords: ., boo, bookcentury1800, booksubjectobstetrics, booksubjectpregnancy
