The subarachnoid space ends at: (A) L1, (B) L2, (C) L5, (D) S2
Answer is D. Arachnoid & dural sheath end at the lower end of the S-2 veebra. Subarachnoid space terminates at the caudal (lower border) S-2 veebra. This is also the ending of the sub-dural space. Ref - BDC 6thedition vol 2