In adults, the spinal cord normally ends at?: (A) Lower border of L1, (B) Lower border of L3, (C) Lower border of S1, (D) Lower border of L5
Answer is A. In the fetus, the spinal cord and the veebral column are of the same length. Since the veebral column grows faster, the spinal cord retracts. It ascends upwards and reaches the level of lower border of L3 at bih and lower border of L1 in adults.