This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Pelvic splanchnic nerve is formed by : 
Select and explain. 
A. Pelvic splanchnic nerve is formed by :, B. Posterior rami of S2-S3 S4, C. Anterior rami of L5 SI S2, D. Anterior rami of S2 Si S4
D: Anterior rami of S2 Si S4
Answer: D: Anterior rami of S2 Si S4 
Explanation: 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.