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The levator ani is a broad, thin muscle group, situated on either side of the pelvis. It is formed from three muscle components: the pubococcygeus, the iliococcygeus, and the puborectalis. It is formed from three muscle components: the pubococcygeus, the iliococcygeus, and the puborectalis.
The anococcygeal body (anococcygeal ligament or anococcygeal raphe) is a fibrous median raphe in the floor of the pelvis, which extends between the coccyx and the margin of the anus. It is composed of fibers of the levator ani muscle that unite with the muscle of the opposite side, muscle fibres from external anal sphincter , and fibrous ...
The deep branch of the perineal nerve supplies the muscles of the perineum. [2] These include superficial transverse perineal muscle, bulbospongiosus muscle, ischiocavernosus muscle, the bulb of penis. [1] It also supplies levator ani, and the external anal sphincter. [1]
Female pelvic muscles Male pelvic muscles. The pelvic floor or pelvic diaphragm is an anatomical location in the human body, [1] which has an important role in urinary and anal continence, sexual function and support of the pelvic organs. [2] The pelvic floor includes muscles, both skeletal and smooth, ligaments and fascia.
Each levator ani muscle forms either lateral border of the hiatus. [ 1 ] The hiatus acccomodates the apex of the prostate in males, [ 1 ] and gives passage to the urethra in both sexes, the vagina in females, the deep dorsal vein of clitoris (females) or penis (males), [ 2 ] and nerves of the penis in males.
The irregularity of this line is because the origin of the Levator ani, which in lower forms is from the pelvic brim, is in man lower down, on the obturator fascia. Tendinous fibers of origin of the muscle are therefore often found extending up toward, and in some cases reaching, the pelvic brim, and on these the fascia is carried. Inferior
The perineal body is essential for the integrity of the pelvic floor, particularly in females. Its rupture during vaginal birth leads to widening of the gap between the anterior free borders of levator ani muscle of both sides, thus predisposing the child-bearer to prolapse of the uterus, rectum, or even the urinary bladder.
Levator ani syndrome is a condition characterized by burning pain or tenesmus of the rectal or perineal area, [1] caused by spasm of the levator ani muscle. [ 2 ] [ 3 ] [ 4 ] The genesis of the syndrome is unknown; however, inflammation of the arcus tendon is a possible cause of levator ani syndrome.