What is the extent of spinal cord in an adult?: (A) Lower border of L1, (B) Tip of Coccyx, (C) Upper border of L3, (D) S2
Answer is A. Ans. is 'a' i.e., Lower border of LI * Spinal cord begins at foramen magnum and, in adults, ends at lower border of LI.StructureExtends uptoAdult spinal cordInfant spinal cordLower border of L} or upper border of L2Upper border of L3 vertebraeFilum terminalePiamaterTip of coccyxDural sheathSubdural spaceSub arachnoid spaceS2 vertebra