Question

the length of spinalcord

Answer 1

The spinal cord, about 45 cm in length, extends from the foramen magnum, where it is continuous with the medulla oblongata, to the level of the first or second lumbar vertebra (The range is T12 to L3).

Answer 2

I guess as long as our back 
hope it works 
but continue for some more answers,I am not sure.