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Deep transverse perineal muscle - ...

Other Terms: Transversus perinei profundus

Muscle parts

None

Latin name

Musculus transversus perinei profundus (male)

Latin muscle parts

None

Group

Pelvis/perineal wall – lateral musculature – middle layer

Etymology

In English, this muscle’s name is the crosswise muscle of the area around that which excretes. The Latin term transversus means “crosswise” and comes from Latin trans meaning “across, beyond, or through” and the Latin verb vertere meaning “to turn.” Perinei comes from the Greek peri meaning “around” and the verb inan, which means “to excrete.” This reference to excretion is applied to the anus and urethral opening. The term profundus is Latin for “deep.” It arises from the Latin pro meaning “before” and fundus meaning “the bottom.” So something just before the bottom is deep.

Origin

Medial side of the ischial ramus.

Insertion

Perineal body where its fibers blend with the other middle layer muscles.

Action

The two sides pull on the perineal body and restrict its movement to stabilize the pelvic floor, urethra, and anus

Nerve supply

Perineal branches of the pudendal nerve (S2, S3, and S4)

Blood supply

Internal pudendal artery from the internal iliac artery.

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