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Deep muscles of the chest, including pectoralis minor, serratus anterior, and subclavius (Gray 1918) Pectoralis major is a thick, fan-shaped or triangular convergent muscle, which makes up the bulk of the chest muscle. It lies under the breast. It serves to flex, extend, and rotate the humerus, the long bone of the upper arm.
It makes up the bulk of the chest muscles and lies under the breast. Beneath the pectoralis major is the pectoralis minor muscle . The pectoralis major arises from parts of the clavicle and sternum , costal cartilages of the true ribs , and the aponeurosis of the abdominal external oblique muscle ; it inserts onto the lateral lip of the ...
Learn the best chest exercises at home using bodyweight and dumbbells for an upper-body workout to target the pectoral muscles and armpit fat, improve posture.
An X-ray of a human chest area, with some structures labeled. The contents of the thorax include the heart and lungs (and the thymus gland); the major and minor pectoral muscles, trapezius muscles, and neck muscle; and internal structures such as the diaphragm, the esophagus, the trachea, and a part of the sternum known as the xiphoid process.
The pectoralis major, the larger of the two chest muscles, is responsible for movements such as pushing, lifting and rotating the arm. Exercises like pushups , chest presses and chest flys ...
9. Push-Up Hold. Start in a high plank position, shoulders directly over wrists, hands slightly wider that shoulder-width apart. Engage core so body forms a straight line from head to heels.
Upper Limb, Arm, Anterior compartment, right/left anterior surface of humerus (mainly distal half) coronoid process of ulna, tuberosity of ulna: radial recurrent artery: musculocutaneous nerve: flexes elbow: triceps brachii: 2 1 triceps brachii: Upper Limb, Arm, Posterior compartment, right/left long head: infraglenoid tubercle of scapula
The chest fly is performed while lying face up on a bench or standing up, with arms outspread holding weights, by bringing the arms together above the chest. This is a compound exercise for the pectorals. Other muscles worked include deltoids, triceps, and forearms. Equipment: dumbbells, cable machine or "pec deck" machine.