Human Anatomy - Kotsan I. Ya. 2009

Urogenital system
Genitalia - External female genitalia
Labia minora

The labia minora pudendi are two thin Skin folds devoid of adipose tissue, located medially and parallel to the Labia Majora (Fig. 183). The labia minora bound the vaginal vestibule laterally. Their anterior edges are thin and free. When the pudendal cleft is closed, they sometimes protrude slightly between the labia majora. The Connective Tissue underlying the labia minora is rich in elastic and smooth Muscle fibers. Nerves, Arteries, and a dense network of venous vessels run through the thickness of the labia minora, making them capable of a certain degree of erectile function. The skin of the labia minora is hairless and contains A large number of Sebaceous Glands. The anterior end of each labia minora splits into two crura (folds) extending toward the Clitoris. The lateral crus bypasses the clitoris laterally and arches over it superiorly. By joining one another, the lateral crura form the prepuce of the clitoris (preputium clitoridis). The medial crus of the labia minora is shorter, approaches the clitoris inferiorly, and, by merging with the crus of the opposite side, forms the frenulum of the clitoris (frenulum clitoridis). The posterior ends of the labia minora are joined by a transverse fold—the frenulum of the labia (frenulum labiorum pudendi). The depression between the frenulum of the labia and the vaginal orifice is called the fossa of the Vestibule of the Vagina (fossa vestibuli vaginae).