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What is Pelvic splanchnic nerve is formed by : and explain in detail?
D. i.e. Ventral/ Anterior rami of Sz, S3, S4Parasympathetic supply of gastrointestinal tract from pharynx upto midgut (or proximal 2/3 transverse colon) is supplied by vagus nerve and parasympathetic supply of hindgut (i.e. distal 1/3 transverse colon onwards) is by pelvic splanchnic nerve.Vermiform appendix is derived from midgut and is supplied by vagus nerve (parasympathetic) and T9 -- Tip nerves through celiac plexus (sympathetic)Q.