A textbook of obstetrics . Fig. 55. — A, Mature ovum of echinus : n, female pronucleus;ovum of echinus ^Hertwig 1. immature ovarian 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 six- 62 PREGNANCY. tieth 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 pregnancy
A textbook of obstetrics . Fig. 55. — A, Mature ovum of echinus : n, female pronucleus;ovum of echinus ^Hertwig 1. immature ovarian 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 six- 62 PREGNANCY. tieth 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 sixtieth year. Alter the ovumis discharged from the ovary it is caught in a current of fluidmoistening the surface ol 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 time of o
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Keywords: ., bookcentury1800, bookdecade1890, bookidtex, booksubjectobstetrics
