2023年11月3日 · 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.

2024年9月6日 · 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. In this article, we shall learn about the anatomy of the muscles of the anterior chest.

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. The pectoralis major is the most superficial muscle in the pectoral region.

2023年8月28日 · The pectoral muscles are the group of skeletal muscles that connect the upper extremities to the anterior and lateral thoracic walls. Juxtaposed with the regional fascia, these muscles are responsible for moving the upper extremities in a wide range of motion.

2023年5月5日 · 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.

2023年7月24日 · 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.

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: pectoralis major and pectoralis minor.

2024年6月24日 · Pectoralis major is a large, fan-shaped muscle. It covers much of the anterior chest wall. It is composed of two or three parts (depending on texts) named for their origins, with the sternocostal head forming the bulk (~80%) of the total muscle volume 8,9:

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

2025年1月16日 · 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, extension, and adduction of the shoulder joint.