The humerus (ME from Latin humerus, umerus upper arm, shoulder; Gothic ams shoulder, Greek ōmos)'s a long bone in the arm or forelimb that runs from the shoulder to the elbow. Anatomically, it connects the scapula and the ulna, and consists of the following three sections: Upper extremity of humerus Body of humerus Lower extremity of humerus Humerus The deltoid originates on the lateral third of the clavicle, acromion and the spine of the scapula, it's inserted on the deltoid tub… (More on Humerus)