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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 bulbocavernosus reflex (BCR), bulbospongiosus reflex (BSR) or "Osinski reflex" is a polysynaptic reflex that is useful in testing for spinal shock and gaining information about the state of spinal cord injuries (SCI). Bulbocavernosus is an older term for bulbospongiosus, thus this reflex may also be referred to as the bulbospongiosus reflex.
It arises by tendinous fibers from the inner and forepart of the ischial tuberosity and, running medially, is inserted into the central tendinous point of the perineum (perineal body), joining in this situation with the muscle of the opposite side, with the external anal sphincter muscle behind, and with the bulbospongiosus muscle in front.
Bulbocavernosus may refer to: The bulbospongiosus muscle, also called bulbocavernosus muscle; Bulbocavernosus reflex This page was last edited on 27 ...
The bulbospongiosus muscle is highlighted in red. The perineal body is a pyramidal structure of muscle and connective tissue and part of it is located between the anus and vagina. It is a tendon that is formed at the point where the bulbospongiosus muscle , superficial transverse perineal muscle , [ 7 ] and external anal sphincter muscle ...
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 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.
The ischiocavernosus and bulbocavernosus muscles contract, compressing the dorsal vein of the clitoris. This compression of the vein restricts drainage of the erectile structures, trapping the blood. [8] This process stretches the tunica albuginea. As a result, the clitoris becomes tumescent to accommodate the increased intracavernosous pressure.