Suprascapular, axillary and radial nerves
About this plate
Suprascapular, axillary and radial nerves.
The posterior aspect of the arm is dominated by the triceps brachii, whose long head arises from the infraglenoid tubercle of the scapula while the lateral and medial heads take origin from the humerus; the three converge on the olecranon of the ulna. Superiorly, the deltoid caps the shoulder, and beneath it lie the rotator cuff muscles supraspinatus, infraspinatus and teres minor, together with teres major. The axillary nerve winds around the surgical neck of the humerus, and the radial nerve spirals along its groove, giving branches to triceps, anconeus, brachioradialis and the extensores carpi radiales.
Structures labelled on this plate
- Suprascapular
- Supra- spinatus
- Infra- spinatus
- Deltoideus
- Teres minor
- Axillary
- Teres major
- Longus Head
- Lateral head
- Triceps
- Radial
- Medial Head
- Anconaeus
- Deep branch of radial
Source: After Gray's Anatomy (1918). Public domain (Gray's Anatomy, 1918), modernized rendering.
Rendering © 2026 Neuro.Wiki — recolouring, relabelling and three-dimensional modelling. The underlying historical figure is public domain and remains so. Free to view and to cite with a link; not licensed for redistribution, dataset compilation, or AI model training.