Pectoralis Major Chest Muscle
Pectoralis major is the largest and most superficial of the two chest muscles. Pec major and the anterior fibres of Deltoid work closely together. Pec fly and push-up exercises work the Pectoralis major.
- Medial 1/2 of the clavicle
- Costal cartilages of the first 6 ribs
- Intertubercular groove (between the greater and lesser tubercles) of the humerus
- Shoulder flexion
- Internal rotation
- Lateral and medial pectoral nerves
- Using roll-on deoderant
How can I stretch it?
How can I strengthen it?