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Lateral pectoral nerve

Nerve Origin: C5, C6 roots, arising as a branch from the lateral cord(brachial plexus lateral cord 在上肢臂神經叢的數條M[圖譜中的圖片401可看見])

Muscles Innervated(支配): Pectoralis Major (transverse superior portion)

Nerve Routes Lateral pectoral nerve route to pectoralis major (Lateral pectoral nerve 走到 pectoralis major 裡面。)

Sensory Innervation: None

Medial pectoral nerve

Nerve Origin: C8, T1 roots, arising as a branch from the medial cord(brachial plexus medial cord 在上肢臂神經叢的數條M之中[圖譜中的圖片401可看見])

Muscles Innervated: Pectoralis Major (Lateral Oblique Portion) Pectoralis Minor

Nerve routes Medial pectoral nerve route to pectoralis major (最後走到pectoralis major，但是途中穿過pectoralis minor 然後再到 pectoral major)

Sensory Innervation: None

圖譜：圖片400

資料來源：課本，老師教的，http://www.eatonhand.com/ebook/index.htm