<prompt> In adults, the spinal cord normally ends at:Lower border of L1Lower border of L3Lower border of L5Lower border of S1  <response>: Ans. A Lower border of L1Ref: IB Singh, 8th ed. pg. 31 Spinal cord begins at foramen magnum and, in adults, ends at lower border of L1. In newborn, spinal cord ends at L3 vertebrae. 