Urogenital diaphragm

Last revised by Assoc Prof Craig Hacking on 05 May 2021

The urogenital diaphragm is an incorrect historic term describing a structure or structures in the perineum. The term is still in occasional use despite not appearing in Terminologia Anatomica.

Most descriptions of the diaphragm relate to a discoid space between the superficial and deep fasciae of the perineum. The diaphragm is said to consist of the urethral external sphincter and the deep transverse perineal muscle. The entity has had numerous other synonomous definitions in surgical and anatomic literature including:

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