Nerves - Sacral ventral rami
3 important questions on Nerves - Sacral ventral rami
What are the two components of the sacral ventral rami?
1. Pudendal nerve:
2. Caudal rectal nerve:
- Sensory to rectum and external genitalia
- Motor to perineal region muscles (bulbospongiosus muscles)
2. Caudal rectal nerve:
- Sensory to rectum & perineal skin
- Motor to sphincters, coccygeus and levator ani muscles
What region of the spine does the pudendal nerve innervate?
S1/2 - S3/4, it accompanies the internal pudendal artery. It passes along the medial surface of the sacrosciatic ligament in large animals.
What region of the spine does the caudal rectal nerve innervate?
It has overlapping origin with pudendal nerve
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