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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 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 .
Muscles Superficial transverse perineal muscle; Ischiocavernosus muscle; Bulbospongiosus muscle; Penile crura / clitoral crura; Bulb of penis / vestibular bulbs; Urogenital diaphragm; Muscular perineal body; Superficial and deep perineal pouch; Blood vessels and lymphatics
In the middle line, it is connected with the superficial fascia and with the median septum of the bulbospongiosus muscle. This fascia not only covers the muscles in this region, but at its back part sends upward a vertical septum from its deep surface, which separates the posterior portion of the subjacent space into two.
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 deep branch of the perineal nerve is a branch of the perineal nerve, itself a branch of the pudendal nerve. [1] It pierces the medial wall of the pudendal canal. [1]The dorsal nerve of the penis for males and the dorsal nerve of the clitoris for females is the terminal branch of the pudendal nerve.
The ischiocavernosus and bulbospongiosus muscles contract to compress the dorsal vein of the clitoris to stop drainage of the clitoris, trapping the blood. [6] The erectile tissues are composed of endothelium-lined vascular spaces in a trabecular matrix, with the endothelium -lined vascular spaces surrounded by smooth muscle capable of ...
Although the pubococcygeus muscle is commonly thought to be the primary muscle involved in vaginismus, Pacik identified two more spastic muscles in people who were treated under sedation. These include the entry muscle (bulbocavernosum) and the mid-vaginal muscle (puborectalis). Spasm of the entry muscle accounts for the common complaint that ...