Quick Facts
Origin: Internal surface of ramus of ischium.
Insertion: Perineal body.
Action: Stabilizes perineal body; provides structural support to adjacent pelvic and perineal structures.
Innervation: Muscular Branches of perineal nerve (S2-S4).
Arterial Supply: Perineal artery.
Origin
The deep transverse perineal muscle originates from the internal surface of the ramus of ischium.
Insertion
The fibers of the deep transverse perineal muscle travel medially and insert onto the perineal body.
Key Features & Anatomical Relations
The deep transverse perineal muscle is one of the muscles of the deep perineal space, which itself is found in the urogenital triangle of the perineum. It is a short, thin skeletal muscle. It is located:
- superior to the perineal membrane and the superficial transverse perineal muscle;
- inferior to the levator ani muscle;
- medial to the ischium;
- lateral to the perineal body.
Actions
The deep transverse perineal muscle stabilizes the perineal body and provides structural support to adjacent pelvic and perineal structures (Moore, Dalley and Agur, 2009).
References
Moore, K. L., Dalley, A. F. and Agur, A. M. R. (2009) Clinically Oriented Anatomy. Lippincott Williams & Wilkins.
Actions
The deep transverse perineal muscle stabilizes the perineal body and provides structural support to adjacent pelvic and perineal structures (Moore, Dalley and Agur, 2009).
Learn more about this topic from other Elsevier products
Perineum
The perineum is the space below the levator ani and includes the external genitalia, urethra, and anus.
