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Questions and Answers
What is the function of the levator ani muscle?
What is the function of the levator ani muscle?
- Aid in swallowing and speech production
- Facilitate eye movement and vision control
- Assist in breathing and lung expansion
- Support pelvic organs and assist in controlling urinary and fecal continence (correct)
From where does the levator ani muscle arise?
From where does the levator ani muscle arise?
- Posterior surface of symphysis pubis and the ilium (correct)
- Anterior surface of symphysis pubis and ischial spine
- Anterior surface of sacrum and coccyx
- Posterior surface of ilium and sacrum
Which nerve supplies the levator ani muscle?
Which nerve supplies the levator ani muscle?
- Facial nerve
- Vagus nerve
- Branches from 3rd and 4th sacral nerve (correct)
- Sciatic nerve
What is the role of pelvic cellular tissue?
What is the role of pelvic cellular tissue?
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What is the function of the pelvic peritoneum?
What is the function of the pelvic peritoneum?
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Study Notes
Levator Ani Muscle
- The levator ani muscle supports the pelvic floor and helps maintain continence.
- The levator ani muscle arises from the pelvic bone, specifically the posterior surface of the pubis, the spine of the ischium, and the sacrum.
Nerve Supply
- The levator ani muscle is supplied by the sacral nerve roots S3 and S4.
Pelvic Cellular Tissue
- The role of pelvic cellular tissue is to provide a cushioning effect and facilitate the movement of organs within the pelvic cavity.
Pelvic Peritoneum
- The pelvic peritoneum is a serous membrane that lines the pelvic cavity and covers the pelvic organs, providing a friction-reducing surface and allowing for smooth movement of organs during different activities.
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