How is the humerus connected to other bones in the arm?

The humerus is connected to other bones in the arm through the shoulder and elbow joints. At the shoulder, it articulates with the scapula (shoulder blade) at the glenohumeral joint. At the elbow, it connects with the radius and ulna, forming the elbow joint which allows for movement of the forearm. These connections enable a range of motion and functionality in the arm.