Superficial Transverse Perineus
muscles are associated with the superficial perineal space. The Superficial
Transverse Perineus is poorly represented as thin strips of muscle
that extend from the ischial tuberosity to the central tendon. The Bulbospongiosus
forms a sphincter around the base of the penis and acts as a constictor of the
vaginal orifice. The Ischiocavernosus compress
the crura of the penis (clitoris), impede venous return, and maintain erection.