In adults, spinal cord normally ends at
Lower border of L1
Lower border of L3
Lower border of L5
Lower border of S1
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
Head and neck