Henry Gray (18251861). Anatomy of the Human Body. 1918.
glands and their ducts; the internal pudendal vessels and the dorsal nerves of the clitoris; the arteries and nerves of the bulbi vestibuli, and a plexus of veins.
The Transversus perinæi profundusarises from the inferior rami of the ischium and runs across to the side of the vagina. The Sphincter urethræ membranaceæ (Constrictor urethræ), like the corresponding muscle on the male, consists of external and internal fibers. The external fibers arise on either side from the margin of the inferior ramus of the pubis. They are directed across the pubic arch in front of the urethra, and pass around it to blend with the muscular fibers of the opposite side, between the urethra and vagina. The innermost fibers encircle the lower end of the urethra.
FIG. 408 Muscles of the female perineum. (Modified from a drawing by Peter Thompson.) (See enlarged image)
Nerve Supply.The muscles of this group are supplied by the perineal branch of the pudendal.
7. The Fascia and Muscles of the Upper Extremity. a. The Muscles Connecting the Upper Extremity to the Vertebral Column
The muscles of the upper extremity are divisible into groups, corresponding with the different regions of the limb.
I. Muscles Connecting the Upper Extremity to the Vertebral Column.
II. Muscles Connecting the Upper Extremity to the Anterior and Lateral Thoracic Walls.