The development of the human body; a manual of human embryology . themucosa. As development proceeds the reflexa eventually com-pletely encloses the ovum, the point of union of the edgesof the aperture through which the ovum sank into themucosa being indicated for some time by a scar-like mark. The general structure of the reflexa is closely similar tothat described for the vera, but as the ovum increases insize it becomes thinner and thinner, and at about the fifthmonth has come into contact with the vera, forming awhitish transparent membrane with no traces of eitherglands or blood-vessels,
The development of the human body; a manual of human embryology . themucosa. As development proceeds the reflexa eventually com-pletely encloses the ovum, the point of union of the edgesof the aperture through which the ovum sank into themucosa being indicated for some time by a scar-like mark. The general structure of the reflexa is closely similar tothat described for the vera, but as the ovum increases insize it becomes thinner and thinner, and at about the fifthmonth has come into contact with the vera, forming awhitish transparent membrane with no traces of eitherglands or blood-vessels, and very possibly it eventuallydegenerates and completely disappears (Minot). (c) Decidua serotina.—The structure of the serotina upto about the fifth month of development is practically thesame as that of the vera. It loses its epithelium veryearly, probably before the attachment of the ovum, andthe glands undergo the same changes as in the vera, sothat the compactum and spongiosum can be the fifth month, however, there is a great differ-13.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectembryol, bookyear1902
