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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 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]
As might be expected, the contents of the urogenital triangle differ greatly between the male and the female. Some of the components include: [1] Posterior scrotal nerves / posterior labial nerves; Urethra; Vagina; Bulbourethral gland / Bartholin's gland; Muscles Superficial transverse perineal muscle; Ischiocavernosus muscle; Bulbospongiosus ...
Other muscles of the urogenital triangle support the vulvar area and they include the transverse perineal muscles, the bulbospongiosus, and the ischiocavernosus muscles. [20] The bulbospongiosus muscle decreases the vaginal opening. [7] They play a role in the vaginal contractions of orgasm by causing the vestibular bulbs to contract. [21]
Contains superficial perineal muscles: transversus perinei superficialis, bulbospongiosus, ischiocavernosus: Inferior fascia of urogenital diaphragm, or perineal membrane: A membranous layer of the deep fascia: Deep perineal pouch: Contains the deep perineal muscles: transversus perinei profundus, sphincter urethrae membranaceae
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 ...
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, and the external anal sphincter. [1]
The muscles surrounded by the deep perineal fascia are the bulbospongiosus, ischiocavernosus, and superficial transverse perineal. The fascia is attached laterally to the ischiopubic rami and fused anteriorly with the suspensory ligament of the penis or clitoris .