Ischiocavernosus

A muscle that plays a significant role in erectile function.

Ischiocavernosus is a paired muscle located in the pelvic region, primarily responsible for maintaining the rigidity of the penis and clitoris during sexual arousal. This muscle originates from the ischial tuberosity and inserts into the corpus cavernosum, a spongy erectile tissue found in the penis and clitoris.

Terminologia Anatomica

ischiocavernosus

System

Reproductive system

Function

The primary function of the ischiocavernosus muscle is to compress the crura of the penis or clitoris, assisting in the erection process by restricting venous outflow and increasing blood pressure within the erectile tissues. During sexual stimulation, the ischiocavernosus contracts, which helps draw more blood into the corpus cavernosum, thereby maintaining the engorgement and rigidity necessary for sexual activities. This muscle's contraction is coordinated with other pelvic muscles to facilitate not only erection but also ejaculation in males. This active involvement ensures a healthy sexual response, which is vital for reproduction and overall sexual health.

Location

Ischiocavernosus muscles are located on either side of the base of the penis in males and the clitoris in females. They extend from the ischial tuberosity, which is the bony prominence at the back of the pelvis, to the surrounding erectile tissue. In males, these muscles contribute to the pelvic floor and are positioned beneath the perineal membrane, anchoring to the ischium, and extending towards the midline to surround the corpus cavernosum. In females, their positioning is similar, providing support to the clitoris and assisting in its functional dynamics during arousal. The anatomical relationship of the ischiocavernosus to surrounding structures is essential for its proper function and impact on sexual health.

Did You Know?

The ischiocavernosus muscle is one of the key muscles in the pelvic floor that helps maintain sexual function.
In addition to its role in erection, the ischiocavernosus is also involved in the process of orgasm.
Strengthening the ischiocavernosus muscle through pelvic floor exercises can improve sexual performance and health.