Deep Transverse Perineal
Pelvic Floor
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A deeper perineal muscle that reinforces the pelvic outlet — important for continence and pelvic support, particularly during increased abdominal pressure.
Function
Supports pelvic floor/perineal body
Origin
Ischiopubic ramus
Insertion
Perineal body and opposite side fibers
Innervation
Pudendal nerve (S2-S4)