Mother, Nurse and Infant / A Manual Especially Adapted for the Guidance of Mothers and Monthly Nurses, Comprising Full Instruction in Regard To Pregnancy, Preparation for Child-birth, and the Care of Mother and Child, and Designed to Impart so Much Knowledge of Anatomy, Physiology, Midwifery, and the Proper Use of Medicines as Will Serve Intelligently to Direct the Wife, Mother and Nurse in All Emergencies.

by S. P. Sackett

The duration of the flow varies from one to eight days; three or four days is the most usual duration. The quantity of blood lost is variable; from three to five ounces is said to be the average.

When the ovaries are congenitally absent, or have been removed, or have become disorganized, menstruation is absent, or ceases. The cause of the menses is the successive evolution of the Graafian vesicles; but the regular process may go on in the ovary without the regular sanguineous discharge.

The menses continue in the majority of cases until about the age of 46 years, or perhaps in this country 48 years.

According to Dr. Robertson, of England, the periods at which it closed in 77 individuals was, in 1 at the age of 35 years, 4 at 40, 1 at 42, 1 at 43, 3 at 44, 4 at 45, 3 at 47, 10 at 48, 7 at 49, 26 at 50, 2 at 51, 2 at 52, 2 at 53, 2 at 54, 1 at 57, 2 at 60, and 1 at 70.

The average duration of the menstrual function is about 30 years. The cessation of the ovarian function is generally announced several years in advance by irregularities of the menses. Besides the intermissions and irregularities, there are other symptoms; a general and indefinite feeling of uneasiness, pelvic pains, itching at the genital parts, flashes of heat in the face, alterations of chilliness and perspiration, leucorrhœa, etc. These troubles are usually slight, and disappear promptly. The time of life has been called the CRITICAL PERIOD, because there has been an opinion prevalent that peculiar dangers attend it. However, the mortality is not greater between the ages of 45 and 50 years than at any other period of life. Yet it is true that in some instances diseases that had been latent previously, declare themselves at this period.

THE FUNCTION OF THE OVARIES.

We will now consider the physiological action of the ovaries and its intimate connection with the action of the uterus in menstruation, etc.

Preceding the first menstruation an ovary is considerably enlarged, becomes of a red color, and its vascular apparatus is considerably congested; the Fallopian tube also becomes congested; its fimbriated extremity is of a violet red color, and has a velvety appearance. The Graafian vesicles increase in size; fifteen or twenty of them, more advanced than the others, project from the surface of the ovary; one of these grows so that after a few days it forms a tumor of the size of a cherry; the walls of the vesicle, being distended by an increased secretion of fluid, becomes quite thin, and at last are ruptured. When the thinned walls give way, the ovule is expelled, with a part of the granular contents of the vesicle; these are grasped by the fimbriated extremity of the Fallopian tube which is prepared to receive it and convey it through its canal into the cavity of the uterus.

This evolution of an ovule excites numerous sympathies throughout the organism of the female, and especially the generative organs. The vascular apparatus of the womb becomes developed in an unusual manner; a network of fine blood vessels surround the orifices of the numerous glandular tubes, of which the membrane is almost entirely composed; this gives a violet hue to the internal surface of the womb; the utricular glands increase in size, the muscular structure of the uterus acquires greater extension, becomes redder and more spongy and supple, the volume of the organ is increased, the neck is tumefied and its orifice narrower, the lips of the os tincæ are warmer and their color deeper.

The vascular congestion which the uterus undergoes is accompanied with the exudation of sanguineous fluid, which is at first but a few drops; this communicates to the increased vaginal mucus a reddish hue. After a day or two there is a bloody flow from the vascular network of the mucous membrane. This flow, which constitutes the menses, is diminished after three or four days, and the discharge again contains a large proportion of mucus and serum. It is probable that the rupture of a Graafian vesicle occurs during the last days of the flow, ordinarily, and it is also believed that venereal excitement is capable of exerting so much influence upon it that it may determine the rupture of an enlarged vesicle, which, without sexual intercourse, would have remained whole several days longer.