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The pubococcygeus muscle controls urine flow and contracts during orgasm as well as assisting in male ejaculation. [6] It also aids in childbirth as well as core stability. [7] A strong pubococcygeus muscle has also been linked to a reduction in urinary incontinence and proper positioning of the baby's head during childbirth.
Reproducing this type of muscle action can strengthen the Kegel muscles. The action of slowing or stopping the flow of urine may be used as a test of the correct pelvic-floor exercise technique. [11] [12] The components of levator ani (the pelvic diaphragm), namely pubococcygeus, puborectalis and iliococcygeus, contract and relax as one muscle ...
The urogenital hiatus is a large midline opening [1] in the anteromedial part of the pelvic floor (more precisely, the pubococcygeal muscle), [2] extending between the pubis (anteriorly), and rectum (posteriorly). Each levator ani muscle forms either lateral border of the hiatus. [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.
[7] [8] [9] Other muscles that are part of the levator ani are: the pubococcygeus muscle which is made up of the puboperineal, pubovaginal, and puboanal muscles; the puborectal muscle; and the iliococcygeal muscle. [9] [10] The pubovaginal muscle was identified by anatomists as early as 1912. [11]
The bulbospongiosus muscles (in older texts bulbocavernosus and, for female muscle, constrictor cunni) are a subgroup of the superficial muscles of the perineum. [1] They have a slightly different origin, insertion and function in males and females. In males, these muscles cover the bulb of the penis, while in females, they cover the vestibular ...
The anal triangle can be defined either by its vertices or its sides.. Vertices. one vertex at the coccyx bone; the two ischial tuberosities of the pelvic bone; Sides. perineal membrane (posterior border of perineal membrane forms anterior border of anal triangle)
The external anal sphincter (or sphincter ani externus) is an oval tube of skeletal muscle fibers. [1] Distally, it is adherent to the skin surrounding the margin of the anus . [ 2 ] It exhibits a resting state of tonical contraction [ 1 ] and also contracts during the bulbospongiosus reflex .