Pectoralis Major Origin: Â Medial half of the clavicle, sternum, upper costal cartilages (1-7) and the aponeurosis of...
Muscular System
Contractions within the agonist muscles cause increasing motion in a specific direction as well as stopping or...
Pectoralis Minor Origin: Anterior surfaces of 3rd, 4th, and 5th ribs near the costal cartilages Insertion: Coracoid...
We often think of muscles of the shoulder as what is directly at the shoulder site...
Anterior Deltoid Origin: Anterosuperior border of the lateral 1/3 of the clavicle. Insertion: Deltoid tuberosity of humerus on...