Bulbospongiosus

Innervation: Pudendal nerve
Branch: Deep branch of the perineal nerve (from pudendal nerve)
Roots: S2S3S4
Function:
  • In males it helps to empty the urethra, contributes to erection, the contractions of orgasm and ejaculation.
  • In females it clenches the vagina, it contributes to clitoral erection and the contractions of orgasm.