534 



thp: arteries 



with the recurront hranches from the deep pahnar arch, forming the so-called 

 anterior carpal rete. ( v) The posterior terminal and larger division pierces 

 the interosseous membrane, and continues its course downwards behind the inter- 

 osseous membrane, under cover of the extensor muscles, to the back of the wrist, 

 where it ends by anastomosing with the posterior carpal branches of the radial and 



Fig. 353.— The Back of the Left Forearm, with the Posterior Ixterosseovs Artery 

 AXD Branches of the Kadial at the Back of the Wrist. 



(From a dissection in the Hunterian Museum.) 



Articular branch of superior 

 profunda 



Brachialis antieus 

 Supinator longus, cut 



Common extensor tendon 



Extensor earpi radialis longior 

 and brevior 



Supinator brevis 



Poslerior interosseous artery 



Extensor ossis metaearpi pollieis 

 Supinator longus, cut 



Extensor primi internodii pollieis 



Posterior annular ligament 



Extensor earpi radialis longior 



Radial artery 



Ddrsalis pollieis artery 



Extensor secundi internodii 



pollieis 



First dorsal interosseous muscle 



Dorsalis indicts artery 



Princeps pollieis artery 



Dorsal digital artery 



Triceps 



Rete over olecranon 

 Interosseous recurrent artery 



Anconeus, cut 



Extensor carpi uluaris 

 Flexor carpi ulnaris 



Origin of extensor secundi and 

 indicator 



Posterior brancfi of anterior interosseous 



artery 

 Interosseous membrane 



Posterior ulnar carpal artery 

 Extensor carpi radialis brevier 



Posterior radial carpal artery 



Third dorsal interosseous artery 

 Second dorsal interosseous artery 

 Metacarpal or first dorsal interosseous 

 artery 



ulnar arteries, forming the so-called posterior carpal rete. This branch anas- 

 tomoses, as soon as it pierces the interosseous niemljrane, with the posterior 

 interosseous artery. 



(h) The posterior interosseous artery, the larger division of the common 

 interosseous, turns backwards through the triangular interval bounded b}- the 



