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One of the 5 terminal branches of the brachial plexus, the radial n. provides motor innervation to the extensor mm. of both the arm and forearm, and sensory innervation to part of the back of the hand.
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One of the 5 terminal branches of the brachial plexus, the radial n. provides motor innervation to the extensor mm. of both the arm and forearm, and sensory innervation to part of the back of the hand.