What are the functions of the radial nerve? Multiple select question.The radial nerve has cutaneous distribution to the posterior surface of the hand.The radial nerve innervates the skin associated with the lateral shoulder dermatome.The radial nerve innervates all of the extensor muscles of the upper limb.
Question
What are the functions of the radial nerve? Multiple select question.The radial nerve has cutaneous distribution to the posterior surface of the hand.The radial nerve innervates the skin associated with the lateral shoulder dermatome.The radial nerve innervates all of the extensor muscles of the upper limb.
Solution
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The radial nerve has cutaneous distribution to the posterior surface of the hand: This statement is true. The radial nerve does provide cutaneous innervation to the posterior surface of the hand, specifically the dorsal aspect of the lateral 3.5 digits and the associated area of the palm.
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The radial nerve innervates the skin associated with the lateral shoulder dermatome: This statement is false. The lateral shoulder dermatome is primarily innervated by the axillary nerve, not the radial nerve.
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The radial nerve innervates all of the extensor muscles of the upper limb: This statement is true. The radial nerve is responsible for innervating the majority of the extensor muscles in the upper limb, including those in the forearm and hand.
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