Andrew Huberman· PhD
all we've said so far and all you need to know or keep in mind that is is we have the vertebrae the Bony segments that surround the spinal cord in between those we have the discs the soft tissue that also have a hole through them the spinal cord travels through that so that the vertebrae can move so that we have some pliability and Mobility our spine forward flexion so your chin closer to your belly extension your chin back and away from your belly sort of arching of the lower back you can twist to side to side to some extent you have all that stuff and through the middle is the spinal cord and the brain and then you have sensory information going into the spinal cord from the body from the muscles from the skin and then you have motor commands going out the bottom of the spinal cord so literally traveling out past those vertebrae and discs out to the muscles to control those muscles for involuntary and voluntary movement