In all the specimens examined, it was evident that ovulation had occurred or would occur in two successive seasons.
Large follicles remaining after ovulation represent, in many instances, eggs that will be laid later in the same season.
The ovarian cycle begins in July or August, after ovulation has occurred.
Corpora albicantia remain on the ovary until April of the year following ovulation but disappear in May and are never present after the new set of eggs is ovulated.
Disadvantages, if any, of completing spermatogenesis well in advance of ovulationseem to be at least partly counteracted by two annual mating periods or by mating throughout the season of activity.
The enlarged follicles remaining on the ovaries after ovulation (excluding those smaller than six mm.
This process of ovulation has the peculiarity of the first stages of an inflammatory action, because the ovaries become congested whenever an ovisac ruptures.
Menstruation and ovulation ordinarily occur simultaneously, but they may be independent and take place at different times.
Ovulation and menstruation occur about the same time, but often one antedates the other a few days.
I do not propose to discuss here the nature of the connexion between these periodic processes in the ovaries and the uterus, respectively--that is, between ovulation and menstruation.
In the girl, the breasts and the pelvis assume the adult female type, and ovulation and menstruation begin.
Ovulation and menstruation usually occur about the same time.
Ovulation consists in the formation of an ovum or egg by one of the ovaries once a month.
In woman, the first important period usually occurs from twelve to fourteen, when the functions of menstruation and ovulation begin.
Another function suggested for the secretion of the corpora lutea is to prevent further ovulation during pregnancy.
The spawning of Fishes, usually annual, corresponds to ovulation in Mammals, and in the ovary after spawning the numerous collapsed follicles containing the follicular cells may be seen in all stages of absorption.
In the specimens of Dasyurus described by O'Donoghue, in which the milk glands developed after ovulation without ensuing pregnancy, normally developed corpora lutea were present in the ovary.
Leopold and Ravana found that ovulation as a rule coincides with menstruation, but may take place at any time.
But again, the evolution of nerve force required by ovulationshould not normally be comparable in intensity with that effected in cerebral or spinal action.
Ovulation is never in any case altogether independent of the influences of diet and metabolism.
Ovulation consists in the monthly maturation and extrusion of a ripe ovum; menstruation, which will be further discussed in a separate chapter, consists in the monthly discharge of blood, mixed with mucus from the inside lining of the uterus.
It therefore seems unlikely that in this species ovulation is dependent on copulation.
Ovulation is a progressive, non-periodic process; it begins before birth and continues till the ovarian tissue is atrophied or worn out.
It has not yet been decided just in what relation the processes of ovulation and menstruation stand to each other.
Ovulation is doubtless more frequently performed in some women than in others.
Raciborski and Pouchet, who first established the regular periodicity of ovulation in mammals, identified heat and menstruation.
Lawson Tait is reduced to the assertion that ovulation and menstruation are identical.
We now know that ovulation proceeds throughout the whole of life, even before birth, and during gestation,[97] and that removal of the ovaries by no means necessarily involves a cessation of menstruation.
This theory is, however, unsupported by facts, and eventually rests on the exploded belief that ovulation is the cause of menstruation.
Beard approaches the question from the embryological standpoint, and argues that there is what he terms an "ovulation unit" of about 23½ days, in the interval from the end of one menstruation to the beginning of the next.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ovulation" in a variety of sentences. We hope that you will now be able to make sentences using this word.
