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 …

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.

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 …

Nov 6, 2025 · There are three muscles that lie in the pectoral region and exert a force on the upper limb. They are the pectoralis major, pectoralis minor, and the serratus anterior.

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 …

Nov 11, 2025 · The pectoralis major muscle is a large fan-shaped muscle of the pectoral region, overlying the anterior chest wall but often considered an upper limb muscle due to its function.

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 …

Explore the comprehensive anatomy of the pectoralis major muscle, its origin, insertion, actions, and clinical correlations.

Sep 8, 2025 · Learn the anatomy of the Pectoralis Major muscle—covering origin, insertion, function, innervation, and clinical insights. Anatomy Breakdown by Treadwell, DPT.

The pectoralis major muscle is a large, fan-shaped muscle located in the chest region of the human body. It is responsible for a number of important movements, including flexion, …