Humerus Anatomy Muscle. The brachialis is the only muscle of the upper arm that does not connect to the forearm bones and attaches to the humerus. All of these muscles are long muscles that span the length of the upper arm except for the anconeus a small short muscle only 9-10 centimeters cm in length that crosses at the back of the elbow.
The brachialis is the only muscle of the upper arm that does not connect to the forearm bones and attaches to the humerus. The subscapularis muscle is the main deforming force. Represents the old epiphyseal plate.
The subscapularis muscle is the main deforming force.
All of these muscles are long muscles that span the length of the upper arm except for the anconeus a small short muscle only 9-10 centimeters cm in length that crosses at the back of the elbow. The subscapularis muscle is the main deforming force. Proximal humerus fractures are common fractures often seen in older patients with osteoporotic bone following a ground-level fall on an outstretched arm. All of these muscles are long muscles that span the length of the upper arm except for the anconeus a small short muscle only 9-10 centimeters cm in length that crosses at the back of the elbow.