All fibers of the triceps brachii are innervated by the:

Nerve. All the three heads of triceps brachii are innervated by the four branches of the radial nerve (C7, C8). However, according to the cadaveric study it is found that the medial head of triceps brachii is innervated by the ulnar nerve

Explanation:

your answer should be c) enjoy!

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-lavira : )