Bulbospongiosus muscle
Bulbospongiosus is one of the superficial
muscles of the
perineum. It has a slightly different origin, insertion and function in males and females. In both sexes, it is innervated by the perineal branches of the pudendal nerves. In males it contributes to
erection,
ejaculation, and the feelings of
orgasm. In females it closes the
vagina and contributes to the feelings of orgasm.