Pectoral Major Sternal
The Pectoral Major Sternal muscle is a large muscle in the upper chest region. The sternal head originates at the sternum and the upper costal (1-6) cartilages of the ribs. The muscle fibers travel across the side of the chest and attach to the lateral lip of intertubercular groove of the humerus.
Rhomboids
The rhomboids originate on the spinous process of T2 – T5 vertebrae and attach to the medial border of the scapula just inferior to the spine. The rhomboids play a large role in the stabilization of the scapula and therefore play a big role in the overall muscular and skeletal health and balance of the upper back region. The rhomboid muscles can also largely influence tightness in the upper back and spine.
Muscles Associated with the Gallbladder
Anterior Deltoid
The anterior portion of the deltoid is located on the front of the shoulder. It attaches to the anterior surface of the lateral clavicle and inserts onto the deltoid tuberosity of the humerus.
