what's the advantage of having plexus ?

[M.shehab]

. "One advantage to having plexuses is that damage to a single spinal nerve will not completely paralyze a limb".from wiki

but can some one explain it ...........

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[EParker37]

. "One advantage to having plexuses is that damage to a single spinal nerve will not completely paralyze a limb".from wiki

but can some one explain it ...........

This is because the groups of nerves come together to form that plexus, and have overlap, so if I sever one spinal nerve, there is still some signal coming into the plexus from the other nerves that form that plexus.

 

[M.shehab]

thank you