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If less than five or six or more than eighteen napkins are pretty well saturated through, the amount may be considered abnormal. Relation of Ovulation to Menstruation. It has not yet been decided just in what relation the processes of ovulation and menstruation stand to each other. It is supposed that the transit of the ovum to the uterus occupies at least one week.
For its physiological action, both in menstruation and in pregnancy, is the direct consequence of ovarian functions, and closely dependent upon them; and the period of its prominent activity does not come until after the action of the ovaries has been completely established; that is, the period of maternity is, or should be, consecutive to the period of adolescence, and the work of gestation only entered upon when the work of ovulation has long been thoroughly accomplished.
Ovulation is a progressive, non-periodic process; it begins before birth and continues till the ovarian tissue is atrophied or worn out. Premonitory Symptoms of the Flow. The premonitory symptoms of the monthly flow should not be so marked as to cause the individual any discomfort. The first indication of the return of the period should be the appearance of the flow.
"Toil and grow strong; by toil the flaccid nerves Grow firm, and gain a more compacted tone." Ovulation. At birth the formation of the ova is nearly completed; the production of' new cells probably ceases after the second year. The ovaries of the child of two years contain, therefore, the full quota of ova, although the vast majority of these cells always remain immature and undeveloped.
After referring to the biological facts which show the effect of psychic influences on the formative powers of the ovario-uterine organs in animals, Tilt continues: "I may fairly infer that similar incitements on the mind of females may have a stimulating effect on the organs of ovulation.
On this view that the corpora lutea are the result, not the cause, of intra-uterine gestation, it would no longer be possible to maintain the theory that the corpus luteum in the human species is the cause by its internal secretion of the phenomenon of menstruation. Leopold and Ravana found that ovulation as a rule coincides with menstruation, but may take place at any time.
The ovulation theory was refuted by the following facts: Ovulation may and does occur without menstruation; women who have never menstruated may conceive; conception may occur during lactation, without the menses having returned since the last parturition; children at birth have many ovules contained within the ovaries; ovulation may persist for a time after the menopause, and even pregnancy has occurred, although very rarely after this time; the menses may continue regularly after the removal of the ovaries and Fallopian tubes; this is exceptional, and, as a rule, the periods only continue for two or three years at longest.
The early Placentalia would inherit from the Monotreme-like ancestors the development of the milk glands after ovulation, although no sucking was taking place while the young were inside the uterus. It seems probable that the relation between parturition and actual milk secretion originated with the sucking stimulus of the young after birth.
Ely van de Warker is that "if healthy ovulation is the outcome of healthy childhood, the function will obey the law of periodicity year by year, and all this time the young woman will be able to sustain uninterrupted physical and intellectual work as well as the young man.
It was believed that this excess of blood depended on an excess of formative power in the woman. Second, the Ovulation Theory. This was distinctly formulated about 1845. It construed the menstrual hemorrhage as a subsidiary phenomenon, entirely dependent on the periodic dehiscence of ovules.
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