A textbook of obstetrics . Fig- 55-—A, Mature ovum of echinus : n, female pronucleus; B, immature ovarianovum of echinus (Hertwig). India impregnation has occurred before menstruation had begun ;but usually premature maternity is preceded by precocious men-struation. Ovulation has continued, as proved by impregnation,until the fifty-second, fifty-fourth, fifty-eighth, and even to the fifty- 62 PREGNANCY. ninth year ! A case is recorded of delivery at the age of fifty-nineyears and five months. An obstetrician investigating the nature ofan abdominal tumor should remember, therefore, that pregna
A textbook of obstetrics . Fig- 55-—A, Mature ovum of echinus : n, female pronucleus; B, immature ovarianovum of echinus (Hertwig). India impregnation has occurred before menstruation had begun ;but usually premature maternity is preceded by precocious men-struation. Ovulation has continued, as proved by impregnation,until the fifty-second, fifty-fourth, fifty-eighth, and even to the fifty- 62 PREGNANCY. ninth year ! A case is recorded of delivery at the age of fifty-nineyears and five months. An obstetrician investigating the nature ofan abdominal tumor should remember, therefore, that pregnancyis possible from the ninth to the fifty-ninth year. After the ovumis discharged from the ovary it is caught in a current of fluidmoistening the surface of the ovary, and is carried to the interiorof the corresponding tube. The existence of this current of fluidis explained by the movement of the ciliated epithelium in thetubes. In some animals there is a development of ciliated epi-thelium on the peritoneum at the tim
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectobstetrics, bookyear1
