Bone
Humerus
Bone of the arm
High-yield
Surgical neck → axillary nerve; radial groove → radial nerve; medial epicondyle → ulnar nerve (the 'funny bone').
Overview
The single long bone of the arm, articulating with the scapula proximally and the radius and ulna distally. Several nerves run in close relation to it.
Reference facts
- Bone type
Long
- Key landmarks
Head; Anatomical and surgical necks; Greater and lesser tubercles; Intertubercular (bicipital) groove; Deltoid tuberosity; Radial (spiral) groove; Medial and lateral epicondyles; Capitulum; Trochlea; Olecranon, coronoid, and radial fossae
- Articulations
Scapula (glenohumeral joint); Radius and ulna (elbow joint)
Clinical correlation
Surgical neck fracture endangers the axillary nerve and posterior circumflex humeral artery.