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Pectoralis major (sternal head) at rest
Pectoralis major (sternal head) in shoulder extension
Pectoralis major at rest
Pectoralis major in shoulder transverse adduction
Pectoralis major at rest
Pectoralis major in shoulder transverse flexion
Pectoralis major at rest
Pectoralis major in shoulder internal rotation
Pectoralis major (sternal head)
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Related Anatomy
Nerve
Medial pectoral nerve
Plexus
Brachial plexus
Muscle Action
Shoulder extension
Shoulder adduction (transverse)
Shoulder adduction
Shoulder flexion (transverse)
Nerve Root
C7
C8
T1
Brachial Plexus Trunk
Lower trunk
Brachial Plexus Cord
Medial cord
Brachial Plexus Division
Anterior division
Related Tutorials
Pectoral Region and Axilla
Brachial Plexus - Advanced
Brachial Plexus - Essentials