. Quain's elements of anatomy . nd it may in rare instances completely close the vagina,constituting imperforate hymen. On the other hand, it is oftenreduced to a mere fringe, or it may be entirely absent. After itsruptui-e, some small rounded elevations remain, called carunculce mijrti-/ormes. The mucous membrane may be traced inwards from the borders ofthe labia majora, where it is continuous with the skin : it forms a foldover the vascular tissue of the nymphce, and is then prolonged into theurethra and vagina. It is smooth, reddish in colour, is covered by ascaly epithelium, and is provide
. Quain's elements of anatomy . nd it may in rare instances completely close the vagina,constituting imperforate hymen. On the other hand, it is oftenreduced to a mere fringe, or it may be entirely absent. After itsruptui-e, some small rounded elevations remain, called carunculce mijrti-/ormes. The mucous membrane may be traced inwards from the borders ofthe labia majora, where it is continuous with the skin : it forms a foldover the vascular tissue of the nymphce, and is then prolonged into theurethra and vagina. It is smooth, reddish in colour, is covered by ascaly epithelium, and is provided with a considerable number of mucouscrypts or follicles, and with glands which secrete an unctuous andodorous substance. The mucous crypts and follicles are especially dis-tinct on the inner surface of the nymphse, and near the orifice of theurethra. The sebaceous glands are found beneath the prepuce, andupon the labia majora and outer surface of the nymphfe. The glands of Bartholin (or of Duverney) (fig. 604, n), correspond-. 702 THE FEMALE REPEODUCTIVE OEGANS. ing to Cowpers glands in the male, are two reddish yellow, round or ovalbodies, measuring about half an inch in the longest diameter, lodgedone on each side of the commencement of the vagina, between it andthe erectores clitoridis muscles, beneath the superficial perineal fascia,and in front of the transverse muscles. Their ducts, which are longand single, rim forward and open on the inner aspect of the nymph£e,outside the hymen or caruncul^ myrtiformes. Erectile tissue.—All the parts of the vulva are supplied abundantlywith blood-vessels, and in certain situations there are masses composedof venous plexuses, or erectile tissue, corresponding to those found inthe male. Besides the corpora cavernosa and glans clitoridis, alreadyreferred to, there are two large leech-shaped masses, the hulM vestihuli(fig. Q)Qb,a), about an inch long, consisting of a network of veins, enclosedin a fibrous membrane, and lying one on ea
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