Question

What is the function of the iliococcygeus muscle (part of levator ani)?

1) Forms the pelvic floor and supports pelvic viscera
2) Reinforces the urogenital sphincters
3) Reinforces the vaginal sphincter
4) All of the above

Answer 1

The iliococcygeus muscle, part of the levator ani, has multiple functions including supporting pelvic organs, aiding in defecation and childbirth, and reinforcing sphincters for the urethra, rectum, and vagina option (4).

Step-by-step explanation:

The function of the iliococcygeus muscle, which is part of the levator ani, is quite versatile within the structure of the pelvic floor. Its functions include forming the pelvic floor and supporting the pelvic viscera, resisting pressure during abdominal muscle contraction to aid in defecation and childbirth, and creating skeletal muscle sphincters. Therefore, the iliococcygeus muscle assists in all the following:

• Forms the pelvic floor and supports pelvic viscera.
• Reinforces the urogenital sphincters.
• Reinforces the vaginal sphincter.

All of these functions are critically important for maintaining the integrity of the pelvic floor and the well-being of the urinary and reproductive systems.

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