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.

Nov 3, 2023 · 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 …

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 …

May 5, 2023 · 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 …

The pectoralis major is the most superficial muscle in the pectoral region. There are 2 heads of the pectoralis major, the clavicular and the sternocostal, which reference their area of origin.

A pectoralis tear is an injury to the pectoralis major muscle or its tendon, located in the chest and attached to the upper arm. Tears can range from mild strains to complete ruptures, often …

Feb 15, 2025 · A rare acute injury caused by avulsion of the pectoralis major tendon and usually seen in weightlifters.

Jul 24, 2023 · 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 …

Jun 13, 2025 · The pectoralis major is a muscle of the anterior chest wall. It is a large fan-shaped muscle, which is composed of a sternal head and a clavicular head.

The pectoralis major is a large, fan-shaped muscle located in the anterior chest wall. It plays a crucial role in movements of the shoulder and upper limb, contributing to adduction, medial …