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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.
The coccygeus muscle completes the pelvic floor, which is also called the pelvic diaphragm. It supports the viscera in the pelvic cavity, and surrounds the various structures that pass through it. The levator ani is the main pelvic floor muscle and contracts rhythmically during female orgasm, and painfully during vaginismus. [4]
The same human pelvis, front imaged by X-ray (top), magnetic resonance imaging (middle), and 3-dimensional computed tomography (bottom). The pelvis (pl.: pelves or pelvises) is the lower part of an anatomical trunk, [1] between the abdomen and the thighs (sometimes also called pelvic region), together with its embedded skeleton [2] (sometimes also called bony pelvis or pelvic skeleton).
The muscular pelvic diaphragm is composed of the bilateral levator ani and coccygeus muscles and these attach to the inner pelvic surface. The iliococcygeus and pubococcygeus make up the levator ani muscle. The muscles pass behind the rectum. The levator ani surrounds the opening which the urethra, rectum and vagina pass.
The urogenital triangle is the area bound by a triangle with one vertex at the pubic symphysis and the two other vertices at the iliac tuberosities of the pelvic bone. Components [ edit ]
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 psoas major (/ ˈ s oʊ. ə s / or / ˈ s oʊ. æ s /; from Ancient Greek: ψόᾱ, romanized: psóā, lit. 'muscles of the loins') is a long fusiform muscle located in the lateral lumbar region between the vertebral column and the brim of the lesser pelvis.
Where the lower part of the anterior abdominal wall meets the thigh, a crease is formed known as the inguinal groove or crease. The junction is the area of the medial compartment of the thigh that contains the attachments of the adductor muscles of the hip, also known as the groin muscles.