Anaesthesia General d55b7d6c Cranial nerve not involved in spinal anaesthesia – A 1st and 10th B 3rd and 6th C 2nd and 4th D 7th and 8th High-Yield Explanation All cranial nerves except 1st, 9th & 10th can be involved after spinal anesthesia. Most commonly (90%) 6th nerve is involved.