Table 4-1.
Muscles of the Upper Arm
| MUSCLE | ORIGIN | INSERTION | NERVE SUPPLY |
|---|---|---|---|
| Coracobrachialis | Coracoid process | Shaft of the humerus above the middle of the bone | Musculocutaneous (C5, C6, C7) |
| Biceps brachii | Short head, coracoid process; long head, supraglenoid tubercle; superior part of glenoid labrum | Tuberosity of the radius and by aponeurotic expansion to the fascia on the ulnar side of the forearm | Musculocutaneous (C5, C6) |
| Brachialis | Distal half of anterior surface of humerus | Coronoid process and tuberosity of the ulna | Musculocutaneous (C5, C6) |
| Triceps | Long head, infraglenoid tuberosity of the scapula; lateral head, from the posterior surface of the humerus; medial head, from the posterior surface of the humerus below the radial groove and dorsal surfaces of the medial and lateral intermuscular septa | Primary tendon inserts onto the olecranon process of the ulna and laterally, by expansion over the anconeus, into the dorsal fascia of the forearm | Radial (C6, C7, C8) |
Axial
Figure 4.1.1
Figure 4.1.2
Figure 4.1.3
Figure 4.1.4
Figure 4.1.5
Figure 4.1.6
Figure 4.1.7
Figure 4.1.8
Figure 4.1.9
Figure 4.1.10
Figure 4.1.11
Sagittal
Figure 4.2.1
