WebDeltoid muscle: The deltoid muscle is a large muscle that covers the shoulder and has three parts: anterior (front), middle, and posterior (back). It plays a major role in various shoulder movements, including flexion, abduction, and extension. Pectoralis major muscle: This muscle is located in the chest and has an attachment to the humerus. WebJan 11, 2024 · During the past 2 decades, the frequency of pectoralis major muscle …

Anatomy, Shoulder and Upper Limb, Shoulder Muscles

WebLatissimus dorsi, along with teres major and the sternal head of pectoralis major, is also active in the extension of the humerus. Extension and adduction will be strongest when the motion is started from a position of … WebMusculus pectoralis major Definition Origin: Anterior surface of the medial half of the clavicle. Sternocostal head: anterior surface of the sternum, the superior six costal cartilages Insertion: Intertubercular groove of the humerus Artery: Pectoral branch of the thoracoacromial trunk total arthroplasty of hip unilateral

Pectoralis major - Wikipedia

WebThe pectoralis major muscle (the “pecs”) is a large muscle on the chest wall. It is responsible for ... humerus (arm) bone, back to the original attachment site. It is best of surgery takes place within the first three months after the time of injury in order to prevent tendon retraction, although ... WebJan 11, 2024 · Injury of the pectoralis major can occur at the muscle origin, muscle belly, musculotendinous junction, intratendinous region, and/or humeral insertion—with or without bone avulsion. The extent of the tendon injury ranges from partial to complete tears. WebJan 7, 2024 · The pectoralis major is much larger. It originates at the clavicle (collar bone), the sternum (breast bone), and ribs. It attaches to the humerus, the large bone in your arm. This muscle helps in several movements of the shoulder. The pectoralis minor is a smaller muscle lying under the pectoralis major. total ash 2.4.16