The Pectoralis Major is the main muscle of the chest, while the Pectoralis Minor lies just deep to it providing assistance. The Pectoralis Major runs from the clavicle, sternum, and upper 6 ribs to connect to the humerus. The Pectoralis Minor runs from ribs 3-5 to the coracoid process of the scapula. #experience #anatomy #experienceanatomy #humananatomy #anatomylab #anatomyeducation #anatomicalvariation #learning #education #medicine #medicalstudent #pecmajor #pecminor #muscle #plastinate