University of South Florida GMS 660549. Anatomy-Pelvis Perineum 6

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Anatomy Dr. Jugesh Khanna SJSM SVG 2013Female External Genitalia Labia Majora Are two longitudinal folds of skin that run downward and backward from the mons pubis and are joined anteriorly b... y the anterior labial commissure. Are homologous to the scrotum of the male. Their outer surfaces are covered with pigmented skin, and after puberty, the labia majora are covered with hair. Contain the terminations of the round ligaments of the uterus. Labia Minora Are hairless and contain no fat, unlike the labia majora. Are divided into upper (lateral) parts, which, above the clitoris, fuse to form the prepuce of the clitoris, and lower (medial) parts, which fuse below the clitoris to form the frenulum of the clitoris. 2Female External Genitalia Vestibule of the Vagina (Urogenital Sinus)  Is the space or cleft between the labia minora.  Has the openings for the urethra, the vagina, and the ducts of the greater vestibular glands in its floor. 3Female External Genitalia Clitoris Is homologous to the penis in the male, consists of erectile tissue, is enlarged as a result of engorgement with blood, and is not perforated by the urethra. Consists of two crura, two corpora cavernosa, and a glans but no corpus spongiosum. The glans clitoris is derived from the corpora cavernosa and is covered by a sensitive epithelium. 4Female External Genitalia Bulbs of the Vestibule Are the homologues of the bulb of the penis of the corpus spongiosum, a paired mass of erectile tissue on each side of the vaginal orifice. Are covered by the bulbospongiosus muscle, and each bulb is joined to one another and to the undersurface of the glans clitoris by a narrow band of erectile tissu [Show More]

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