82 



THE UPPER EXTREMITY 



Now divide the lacertus fibrosus, and separate the bounding 

 muscles widely from each other. Other structures come into 

 view, but they cannot, strictly speaking, be regarded as lying 

 within the space proper. They are (i) the radial nerve, 



N. cutan. antib. med. 

 Fascia brachii 

 V. basilica 



A. brachialis 



N. cut. antib. med. 



N. medianus *~Vfl 



A. recurr. ulnaris ant. ' 

 N. to m. pronat. teres 



N. to m. flex. carp. rad. 



A. ulnaris 



Lacertus fibrosus 



M. pronat. teres, deep head 

 M. flex. carp. rad. 



M. palmaris long. - 



N. cut. antib. med. 



V. basilica - 



N. cutan. antibrachii lat. 

 ram. volaris 

 V. cephalica 



M. brachialis 



N. cutan. antib. lat. ram. 

 dorsalis 



.N, radialis (O.T. 

 musculo-spiral) 

 Lacertus fibrosus 

 N. radialis ram. superf. 

 (O.T. radial) 



N. radialis ram. prof. 

 Tendon of m. biceps 

 brachii 



A. recurr. radialis 

 M. supinator 



M. brachioradialis 



A. radialis 



N. cutan. antib. lat. 

 ram. volaris 



V. mediana 

 FIG. 35. Dissection of the Left Antecubital Fossa. 



(musculo-spiral), the anterior branch of the profunda brachii 

 artery, and the recurrent branches of the radial artery, lying 

 deeply in the interval between the brachioradialis and the 

 brachialis; (2) the anterior branch of the inferior ulnar 

 collateral artery and the anterior recurrent branch of the 

 ulnar artery, placed under cover of the pronator teres. 



