Pectoralis major - Wikipedia The pectoralis major (from Latin pectus ' breast ') is a thick, fan-shaped or triangular convergent muscle of the human chest It makes up the bulk of the chest muscles and lies under the breast
Pectoralis Major: Origin, Insertion, Action, Innervation, Diagram The pectoralis major is a large, triangular, or fan-shaped superficial muscle lying at the anteriormost position in the chest cavity It forms the front wall of the axilla, making up most of the chest and breast
Pectoralis major: Origin, insertion, innervation,function | Kenhub The pectoralis major muscle is a broad superficial muscle found superficially in the anterior chest wall In males, it is covered by the deep layer of fascia, subcutaneous tissue and the adjacent skin In females, it is covered by the breast
Pectoralis muscle | Definition, Location, Function, Facts - Britannica Pectoralis muscle, any of the muscles that connect the front walls of the chest with the bones of the upper arm and shoulder There are two such muscles on each side of the sternum (breastbone) in the human body: the pectoralis major and the pectoralis minor
Muscles of the Pectoral Region - Major - Minor - TeachMeAnatomy It contains four muscles that exert a force on the upper limb: the pectoralis major, pectoralis minor, serratus anterior and subclavius In this article, we shall look at the anatomy of the muscles of the pectoral region – their attachments, actions and innervation
Pectoralis major - Physiopedia The pectoralis major is the superior most and largest muscle of the anterior chest wall It is a thick, fan-shaped muscle that lies underneath the breast tissue and forms the anterior wall of the axilla [1]
Pectoralis Tendon Tear - OrthoInfo | AAOS The pectoralis major tendon attaches the pectoralis major muscle to the humerus (the arm bone) The tendon is most at risk of tearing when it is under maximum stress
What Does the Pectoralis Major Do? Function and Tears The pectoralis major is the large, fan-shaped muscle across the front of your chest, and its primary job is moving your upper arm It pulls your arm toward your body (adduction), rotates it inward (internal rotation), and lifts it forward (flexion)
Pectoralis Major Injuries (Pec Tear) | HSS Sports Medicine The pectoralis major is a powerful chest muscle that causes the arm to move forward, rotate inward and move closer to the body The muscle originates from two points: the sternum (breastbone) and the clavicle (collarbone)