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learn the innervation of the muscles of the upper extremity, what action might be lost if...

learn the innervation of the muscles of the upper extremity, what action might be lost if a specific nerve were somehow damaged? How might a patient present?

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The muscles of the upper extremity are innervated by the higher segments like C5–C6 and form the complex structure naming the branchial plexes.

If specific nerve is somehow damaged in this part the common actions are feeling of numbness, weakness as well as the sensation of the pain in the injured area. In critical case there may be the loss of sensation in the upper arm, forearm as well as hand.

Common sign by the pateint is wrist down as well as decresed muscle tone.

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