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Transversus perinei superficialis - female

Other Terms: Transversus perinei superficialis, Thiele's muscle, Musculus transversus perinei superficialis, Muscle transverse superficiel du périnée

Muscle parts

None

Latin name

Musculus transversus perinei superficialis

Latin muscle parts

None

Group

Pelvis/perineal wall – lateral musculature – external layer

Etymology

In English, this muscle’s name is the crosswise muscle toward the surface 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 superficialis is Latin for “near the surface.” It arises from the Latin superficies meaning “surface”.

Origin

Medial side of ischial tuberosity.

Insertion

Perineal body where it blends with other fibers of the external 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 and its perineal branch from the internal iliac artery.

Latin

Musculus transversus perinei superficialis

French

Muscle transverse superficiel du périnée

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