Where does an adults spinal cord extend to, and why doesn't it go all the way do

  1. Bedbugabscond profile image97
    Bedbugabscondposted 5 years ago

    Where does an adults spinal cord extend to, and why doesn't it go all the way down?

    I know that the true spinal cord doesn't go all the way to the coccyx.Why does it stop elongating?

  2. Jewels profile image85
    Jewelsposted 5 years ago

    We don't have tails and are vertical.  Is it that we have evolved from fish and no longer require our backbone to be as long as our body?  Anatomically our ability to walk on two legs likely predetermines where our spine ends and two legs begin.

 
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