Bulbospongiosus
Pelvic Floor
Assists sexual function and helps empty the urethra after urination — key for both male ejaculation and female sexual arousal response.
Function
Compresses bulb; assists erection, ejaculation, and urethral emptying
Origin
Perineal body and midline raphe around bulb of penis/vestibular bulb
Insertion
Perineal membrane, bulb/corpus spongiosum or vestibular bulb region
Innervation
Deep branch of pudendal nerve (S2-S4)