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It supplies the skin of the posterior surface of the thigh, leg, buttock, and also the perineum. Unlike most nerves termed "cutaneous" which are subcutaneous, only the terminal branches of this nerve pass into subcutaneous tissue before being distributed to the skin, with most of the nerve itself situated deep to the deep fascia.
Recurrent toxin-mediated perineal erythema is an unusual condition that presents 2–3 days after a throat infection as a fine diffuse macular erythema of the perineal region. [ 1 ] [ 2 ] See also
The patient may be given a mild sedative and the perineum will be numbed with a local anaesthetic. A needle is used to obtain tissue samples in a similar manner, often requiring more punctures of the skin. The tissue samples are then sent to a laboratory for analysis.
The perineal body (or central tendon of perineum) is a pyramidal fibromuscular mass in the middle line of the perineum at the junction between the urogenital triangle and the anal triangle. In males, it is found between the bulb of the penis and the anus ; in females, it is found between the vagina and anus, and about 1.25 cm (0.49 in) in front ...
The perineal nerve supplies the skin and muscles of the perineum. [1] The superficial branches supply sensation to the perineum, and the scrotum in men or the labia majora in women. [ 1 ] The deep branch supplies superficial transverse perineal muscle , the bulbospongiosus muscle , the ischiocavernosus muscle , the bulb of penis , levator ani ...
The ischioanal fossa (formerly called ischiorectal fossa) is the fat-filled wedge-shaped space located lateral to the anal canal and inferior to the pelvic diaphragm.It is somewhat prismatic in shape, with its base directed to the surface of the perineum and its apex at the line of meeting of the obturator and anal fasciae.
The function of the muscle is fixation of the perineal body (central tendon of perineum), support of the pelvic floor, expulsion of semen in males and last drops of urine in both sexes. [2] The deep transverse perineal muscle lies in the same plane as the urethral sphincter and formerly the two muscles were described together as the constrictor ...
A perineal tear is a laceration of the skin and other soft tissue structures which, in women, separate the vagina from the anus. Perineal tears mainly occur in women as a result of vaginal childbirth , which strains the perineum .