How are the motor pathways in the spinal cord organised?

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Offline ChaosD.Ace

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Hi guys.
 
So I know the somatic nervous system controls voluntary motion. That the Primary Motor Cortex, Premotor Cortex etc. have points in them associated with body parts and movement patterns rather than individual specific muscles. Signals go from there to other parts of the brain where they enter the ventral horn of the spinal cord and then down to the muscles.
 
My question is are there definitive seperate channels in the spine for each specific muscle (in other words, a fibre for the bicep, one for the tricep on for each of muscles in your hands etc.)?
« Last Edit: 11/10/2013 22:22:29 by chris »

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Offline simonbishop

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Re: Nerves and Muscles? Neuro-Muscular Actuation.
« Reply #1 on: 10/10/2013 15:26:43 »
Great question - offhand, I have no idea! But I'll see what I can find out  :)

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Offline ChaosD.Ace

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Re: Nerves and Muscles? Neuro-Muscular Actuation.
« Reply #2 on: 10/10/2013 19:39:36 »
Thanks it would be a great help to me.