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About every twenty-eight days, one of the follicles swells, becomes filled with liquid, pushes or is pushed to the surface of the ovary, there to rupture and expel into the abdominal cavity the tiny ripe ovum. The rest of the torn follicle makes itself over into a peculiar yellowish body, the true corpus luteum, should pregnancy occur.
William Bell Scott used to come here, too. Scott was a great man in his day. He had no hair on his head or face, not even eyebrows. Every follicle had grown aweary and quit. But Mr. Scott was quite vain of the shape of his head, for well he might be, since several choice sonnets had been combed out of it.
A gland may be a simple pocket, or follicle, as is an oil gland of the skin, or it may be an aggregate of such glands, as is the liver. Or'gan. Any part, or member, that has some specific function, or duty, by which some one of the body's activities is carried on; for example, the eye is the organ of vision, the liver is one of the organs of digestion. Tho'rax.
This is clear evidence that the milk gland was evolved in connexion with hairs, and was an enlargement of glands opening into the hair follicle, but it is difficult to understand why a sebaceous gland is developed and afterwards disappears.
This frizzled condition may be called woolly, or in somewhat exaggerated refinement in the name may be attributed to the term "wool," all sorts of meanings akin to wool; in every case there is wanting to all the Indios the crinkling of the hair from its exit out of the follicle, whereby would result wide or narrow spiral tubes and the coarse appearance of the so-called "peppercorn."
In the best coffee countries, Harar and Yemen, the berry is reserved for exportation. The Southern Arabs use for economy and health the bean being considered heating the Kishr or follicle. This in Harar is a woman's drink.
Numbers of ova die without reaching maturity, the follicular cells degenerate, and the follicle becomes filled with the cells of the theca interna, which have a resemblance to those of the true corpus luteum. These degenerate follicles have been termed spurious corpora lutea, or atretic vesicles. The interstitial cells are the remains of these atretic vesicles.
It may be urged that this idea is contradictory to the previous suggestion that the absorption of nourishment by the intra-uterine embryo was the cause of the gradual decline of the process of yolk-secretion by the ova in the ovary, but it is not really so. Originally in the reptilian ancestor, or in the Monotreme, the ovum in the follicle secreted yellow-coloured yolk.
Sweat gland and duct. i, k. Hair and follicle. l. Oil gland. On the outer surface of the dermis are numerous elevations, called papillæ. These average about one one-hundredth of an inch in height, and one two hundred and fiftieth of an inch in diameter. They are most numerous on the palms of the hands, the soles of the feet, and the under surfaces of the fingers and toes.
The follicles of these hairs extend down into the derma, and from the upper end of the follicle, i.e. near the aperture of the invagination, a long cellular outgrowth extends down into the derma, branches at its end, and becomes hollow. These branches are the tubules of the future milk gland. Another outgrowth from the follicle forms a sebaceous gland.
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