Pectoralis major - Wikipedia

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Muscles of the Pectoral Region - Major - Minor - TeachMeAnatomy

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File:1118 Muscles that Position the Pectoral Girdle.jpg - Wikimedia Commons

Anatomy Basics: Your Pectoralis Major

What is the difference between the pectoralis major and pectoralis minor muscles? What makes them different from each other besides their size and shape, etc.? - Quora

What is the difference between a pectoralis major and a pectoralis minor muscle? - Quora

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Pectoralis major - Wikipedia

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Muscles of the Pectoral Region - Major - Minor - TeachMeAnatomy

Does the Pectoralis major 'twist'? As in does the sternal head insert closer to the shoulder, and the clavicular head closer to the forearm? - Quora