The humerus is the long bone in the upper arm, extending from the shoulder to the elbow. It is crucial for various arm movements and serves as an attachment site for many muscles.
5 Must Know Facts For Your Next Test
The humerus articulates with the scapula at the shoulder joint and with the radius and ulna at the elbow joint.
It is divided into three main parts: proximal end, shaft, and distal end.
The deltoid tuberosity on the lateral side of the humerus serves as an attachment point for the deltoid muscle.
The medial and lateral epicondyles at its distal end are important for muscle attachment and ligament support.
Fractures of the humerus are common injuries that can affect mobility and require medical intervention.
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Related terms
scapula: Also known as the shoulder blade, it connects with the humerus to form part of the shoulder joint.