Fig. 8 A.—The excreting ducts of the mammary gland. (Lenoir and Tarnier.)
Fig. 8 B.—Lobules and duct of the mammary gland. (Lenoir and Tarnier.)
The perineal body is flattened out and compressed by the passage of the head and in many cases torn. (Thirty per cent of primiparas and ten to fifteen per cent of multiparas.) It should be repaired immediately.
The Mammary Glands.—The mammary glands are secondary but highly important parts of the genital system. They are formed by a dipping down of skin glands and they perform the special function of secreting milk.
The breast is made up of fifteen or twenty lobes, each of which, like a bunch of grapes, clusters about and discharges into a single tube which, in turn, leads to the nipple. The area between the lobes is filled with fat and connective tissue.
Fig. 9.—Nipple, areola, and the glands of Montgomery. (Eden.)
The nipple is pink or darkly pigmented. It is composed of erectile tissue and under stimulation, it rises from the surface of the gland so that it is easily taken into the mouth.
