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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. [3] and separates between the pelvic cavity from above, and the ...
Pelvic fascia extends to cover the organs within the pelvis. It is attached to the fascia that runs along the pelvic floor along the tendinous arch. The fascia which covers pelvic organs can be divided according to the organs that are covered: The front is known as the "vesical layer". It forms the anterior and lateral ligaments of the bladder.
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.
It is termed the tendinous arch or white line of the pelvic fascia, and marks the line of attachment of the special fascia (pars endopelvina fasciae pelvis) which is associated with the pelvic viscera. It joins the fascia of the pubocervical fascia that covers the anterior wall of the vagina. If this fascia falls, the ipsilateral side of the ...
Vaginal support structures. The vaginal support structures are those muscles, bones, ligaments, tendons, membranes and fascia, of the pelvic floor that maintain the position of the vagina within the pelvic cavity and allow the normal functioning of the vagina and other reproductive structures in the female. Defects or injuries to these support ...
Urogenital diaphragm. Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front. Vertical section of bladder, penis, and urethra. Older texts have asserted the existence of a urogenital diaphragm, also called the triangular ligament, which was described as a layer of the pelvis that separates the deep perineal sac ...
Perineal membrane. Coronal section of anterior part of pelvis, through the pubic arch. Seen from in front. (Inferior layer labeled at bottom left.) Median sagittal section of male pelvis, showing arrangement of fasciæ. (Inferior layer labeled at center left.) The perineal membrane is an anatomical term for a fibrous membrane in the perineum.
The coccygeus muscle is posterior to levator ani and anterior to the sacrospinous ligament in the pelvic floor. It is a triangular plane of muscular and tendinous fibers. It arises by its apex from the spine of the ischium and sacrospinous ligament. [3][4] It is inserted by its base into the margin of the coccyx and into the side of the lowest ...