THE MEDIAN ARTERY 



655 



considerable size which arises at the level of the interosseous space, thrt agh which 

 it passes outward. Before entering the space it gives off a small branch, the volar 



Deltoid 



Brachiocephalic it s 



Lateral head of 



triceps {cuf^ 



Cutaneous branch o_ 



axillciTy nervt 



Anterior radial aitery 



Common digital cxtc nsor 

 Biachinlis 



Extensor carpi radialis 



Extensor carpi ohliquus 



Tendon of extensor carjri 

 radiolis 

 Lateral lig. of carpus - 



Rete carpi dorsale 



Tendon of common extensor 



Branch to lateral extensor 



\ Tensor fascia; antibrachii 

 Long head of triceps 



Branch of radial nerve to 

 heads of triceps and anconeus 

 Deep brachial artery 



Radial nerve 



Long head of triceps 



Medial head of triceps' 



Anconeus 



Lateral head of triceps {cut off) 



Olecranon 



Ulnar head of deep flexor 

 Cutaneous branch of ulnar 



nerve 

 Latercd lig. of elbow 

 Ulnaris lateralis (cut 

 and reflected) 



Common interosseous artery 



Vina 



Vlncir head of co?nmon . 



digital extensor 

 Deep digital flexor 



Lateral digital extensor 

 Ulnar nerve and vein 



Ulnaris lateralis {stump) 



Dorsal interosseous artery 



Superficial branch of ulnar 

 nerve 



Carpal sheath [opened) 

 Lateral tendon of ulnaris 



lateralis 

 Accessory carpal bone 



A ccessorio-metacarpal 

 ligaments 



Bond from accessory carpal 

 to lateral extensor tendon 

 Lateral extensor tendon 



Fig. 568. — Dissection of Left Foreahm of Hohse; Lateral Sxrface. 

 The radial and ulnar heads of the anterior digital extensor are shown in front of the lateral extensor, but are not 

 marked. The muscular branches of the radial nerve are shown, but not designated individually. Dotted lines indi- 

 cate contour of parts of muscles which have been removed (lateral head of triceps, extensor carpi radialis, lateral flexor 

 of carpus), (-\fter Schmaltz, Atlas d. Anat d. Pferdes.) 



interosseous artery (A. interossea volaris), which descends to the radial head of the 

 deep flexor. In the space it supplies the nutrient arteries of the radius and ulna. 



