deep perineal pouch
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deep per·i·ne·al pouch
the region immediately superior to the perineal membrane, occupied by the membranous part of the urethra, the bulbourethral gland (in the male), the deep transverse perineal and sphincter urethrae muscles, and the dorsal nerve and artery of the penis or clitoris.
Synonym(s): deep perineal space ☆