The clavicular head of the pectoralis major muscle is innervated by the lateral pectoral nerve arising from C5, C6, and C7.

Name: The clavicular head of the pectoralis major muscle is innervated by the lateral pectoral nerve arising from C5, C6, and C7.
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Quizplus · Accepted Answer

The clavicular head of the pectoralis major muscle is indeed innervated by the lateral pectoral nerve, which arises from the brachial plexus with roots in the C5, C6, and C7 spinal nerves.

The Clavicular Head of the Pectoralis Major Muscle Is Innervated