Identification and description of the muscles comprising the pelvic diaphragm
Innervation and blood supply of the pelvic diaphragm muscles
The pelvic diaphragm is a crucial muscular structure supporting pelvic organs and continence. It consists of the levator ani and coccygeus muscles, innervated by the sacral plexus and supplied by gluteal and pudendal arteries.
Identification and Description of the Muscles Comprising the Pelvic Diaphragm
The pelvic diaphragm is a vital structure in the human body, responsible for supporting pelvic organs and maintaining continence. It consists of several muscles that work harmoniously to provide strength and function to the pelvic floor.
Muscles of the Pelvic Diaphragm
- Levator ani muscle group: Includes the pubococcygeus, iliococcygeus, and puborectalis muscles.
- Coccygeus muscle: Supports the posterior portion of the pelvic diaphragm.
Innervation
The muscles of the pelvic diaphragm are primarily innervated by branches of the sacral plexus, specifically the pudendal nerve and direct sacral nerves (S2-S4).
Blood Supply
Blood is supplied by the superior and inferior gluteal arteries, as well as the internal pudendal artery.
Clinical Significance
Weakness or dysfunction of the pelvic diaphragm can lead to disorders such as pelvic organ prolapse and incontinence.
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