How Does Bulbospongiosus Work?

Function. The bulbospongiosus muscle acts to expel remaining urine from the urethra after the bladder has completed its emptying. In males it also aids in the final stages of erection by compressing the veins within the bulb of the penis to maintain tumescence.

What does the bulbocavernosus muscle do?

Bulbocavernosus muscle, also called Bulbospongiosus, a muscle of the perineum, the area between the anus and the genitals. In the male, it surrounds the bulb (the enlarged inner end of the structure that surrounds the urethra) of the penis and can be contracted to expel the last drops of urine or semen.

What does the Bulbospongiosus muscle do in females?

In males it contributes to erection, the contractions of orgasm and ejaculation. In females it contributes to clitoral erection and the contractions of orgasm, and closes the vagina.