Bassett Collection of Stereoscopic Images of Human Anatomy

Arm

Relation of left radial nerve to triceps muscle, posterior view

Image #96-5

KEYWORDS: Neuralnetwork, Upper arm, Vasculature.

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Arm
Relation of left radial nerve to triceps muscle, posterior view
The long and lateral heads of the triceps muscle have been transected (19) and reflected laterally.
1 . Teres minor muscle
2 . Circumflex scapular artery
3 . Teres major muscle
4 . Muscular branches of radial nerve
5 . Triceps brachii muscle (long head, reflected laterally)
6 . Muscular branches brachial artery
7 . Triceps brachii muscle (lateral head, reflected laterally; pointer on intramuscular aponeurosis which unites long and lateral heads of muscle)
8 . Teres major muscle (area of origin)
9 . Radial nerve (retracted medially)
10 . Coracobrachialis muscle (in background)
11 . Brachial artery
12 . Muscular branch of radial nerve (to lateral head of triceps)
13 . Upper pointer: Deep brachial artery (continues distally as radial collateral artery) Lower pointer: Body of humerus (covered by periosteum pointer on sulcus of radial nerve)
14 . Dorsal antebrachial cutaneous nerve
15 . Triceps brachii muscle (medial head)
16 . Superior ulnar collateral artery
17 . Muscular branch of radial nerve (to lower part of medial head of triceps and to anconeus muscle)
18 . Muscular branch of radial nerve (to medial head of triceps)
19 . Triceps brachii muscle (transected; upper pointer, lateral head; lower pointer, long head)