The ulnar nerve is a branch of which cord of the brachial plexus?

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Multiple Choice

The ulnar nerve is a branch of which cord of the brachial plexus?

Explanation:
The ulnar nerve branches off from the medial cord of the brachial plexus. The medial cord itself is formed from the anterior divisions of the lower trunk of the brachial plexus, which consists of nerve roots from C8 and T1. The ulnar nerve is responsible for innervating several muscles in the forearm and hand, including the intrinsic muscles of the hand and certain flexor muscles in the forearm. Understanding that the medial cord contributes to the formation of the ulnar nerve helps clarify the neural pathways and motor functions associated with this nerve.

The ulnar nerve branches off from the medial cord of the brachial plexus. The medial cord itself is formed from the anterior divisions of the lower trunk of the brachial plexus, which consists of nerve roots from C8 and T1. The ulnar nerve is responsible for innervating several muscles in the forearm and hand, including the intrinsic muscles of the hand and certain flexor muscles in the forearm. Understanding that the medial cord contributes to the formation of the ulnar nerve helps clarify the neural pathways and motor functions associated with this nerve.

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