Pectoralis major
section
Subscapularis
Teres major Latjssimus dorsi
Subclavius
Pectoralis minor
Pectoralis major (cut)
Sternal
and costal sections
Anterior deltoid
Pectoralis major
Clavicular section Sternal section Costal section Abdominal fibers
Platę 4-3 Muscles of the chest and shoulder