Deep perineal sac

Deep perineal pouch
Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front. (Deep perineal pouch not labeled, but is between the "superior layer" and "inferior layer" labeled at bottom left.)
Vertical section of bladder, penis, and urethra. (Cowper's gland and membranous portion of urethra visible at center bottom.)
Details
Artery	branches of internal pudendal artery
Vein	branches of internal pudendal veins
Nerve	branches of perineal nerve
Identifiers
Latin	saccus profundus perinei
Dorlands /Elsevier	s_01/12717311
TA	A09.5.03.001
FMA	22061
Anatomical terminology []

The deep perineal pouch (also deep perineal space) is the anatomic space enclosed in part by the perineum, and located superior to the perineal membrane.

The deep perineal pouch is bordered inferiorly by the perineal membrane, also known as the inferior fascia of the urogenital diaphragm. It is bordered superiorly by the superior fascia of the urogenital diaphragm. The deep pouch is now described as the region between the perineal membrane and pelvic diaphragm.

The deep perineal pouch contains:

Older texts have asserted the existence of an "urogenital diaphragm", which was described as a layer of the pelvis that separates the deep perineal sac from the upper pelvis. The urogenital diaphragm lies between the inferior fascia of the urogenital diaphragm and superior fascia of the urogenital diaphragm.

Male anatomy

Median sagittal section of pelvis, showing arrangement of fasciæ.

The deeper branches of the internal pudendal artery.