Pudendal nerve block ?: (A) S1-3, (B) S2-4, (C) S3-5, (D) S4,5
Answer is B. Ans. is 'b' i.e., S2-4 Pudendal Nerve Block It is a peripheral nerve block that provides local anesthesia over S 2-4 dermatomes (majority of perineum and inferior quaer of vagina) It does not block the superior bih canal so the mother is able to feel the uterine contractions.