What is the major structure of the deep perineal space?

What is the major structure of the deep perineal space?

• A. Sphincter urethrae
• B. Bulbospongiosus
• C. Urethra
• D. Dorsal nerve of penis

Answer: (A)

The deep perineal space (deep perineal pouch) is defined by contents that encircle and regulate the urethra. The major structure here is the sphincter urethrae, which forms the external urethral sphincter around the membranous portion of the urethra and provides voluntary control of urination. This muscle is the defining and most important component of the deep perineal space. Bulbospongiosus belongs to the superficial perineal pouch rather than the deep pouch, so it isn’t the major structure of the deep space. The urethra runs through the deep perineal space but is not itself the primary structure defining this space. The dorsal nerve of the penis travels along the dorsal aspect of the penis and isn’t the principal content of the deep perineal space.

The deep perineal space (deep perineal pouch) is defined by contents that encircle and regulate the urethra. The major structure here is the sphincter urethrae, which forms the external urethral sphincter around the membranous portion of the urethra and provides voluntary control of urination. This muscle is the defining and most important component of the deep perineal space.

Bulbospongiosus belongs to the superficial perineal pouch rather than the deep pouch, so it isn’t the major structure of the deep space. The urethra runs through the deep perineal space but is not itself the primary structure defining this space. The dorsal nerve of the penis travels along the dorsal aspect of the penis and isn’t the principal content of the deep perineal space.