<prompt> In adults, spinal cord normally ends atLower border of L1Lower border of L3Lower border of L5Lower border of S1  <response>: The spinal cord extends upto the level of 2nd lumbar veebra as conus medullaris.Below the level of conus medullaris only piamater is continued as a thin fibrous cord,the filum terminale. REF.BDC VOL.3 Fifth edition 