PERINEAL NERVE

 

ORIGIN: Pudendal nerve.

COURSE/DISTRIBUTION: This nerve takes its origin from the pudendal nerve and passes to the posterior margin of the urogenital diaphragm accompanied by the internal pudendal artery. It breaks into its terminal branches  which are the posterior scrotal nerves (2) and muscular branches. It supplies most of the muscles of the perineum.

BRANCHES:

bulletPosterior scrotal (labial) nerves which are two in number.
bulletMuscular branches to muscles of the perineum- bulbospongiosus, ischiocavernosus, superficial transverse perineal muscle, deep transverse perineal muscle and sphincter urethrae.

 

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Creator: Oluwole Ogunranti


 

  

 

 

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Creator: Oluwole Ogunranti