182 



PRACTICAL ANATOMY. 



The ulnar nerve (Fig. 123) you have already seen in the ulnar groove with 

 its accompanying artery and vena.- comites. Xow see how it gains this groove. 

 Trace it behind the inner condyle, between the condylar and olecranon heads of 

 the flexor carpi ulnaris muscle. Trace its branches to this muscle and to the 

 ulnar half of the flexor profundus digitorum. 



The following muscles remain to be dissected (Fig. 125) : 



I. The flexor f>rof/fii>/ns <iigiti>nun, on the ulnar side. 



Fectoralia minor 



Short bead of biceps 



Coraco-brachialis 



Long head of triceps 



Inner head of triceps 



Internal-intermuacular septum 



c-y- Long bead of bicej- 



^-j Insertion of pectoraim major 



Insertion of deltoid 



- Brachialie anlicua 



IK- Outer part oi braeh;aiis anticua 



Insertion oi biceps 



FIG. 127. DEEP VIEW 01- THE FKONT OF THE Uri'ER AKM. 



2. The flexor longus pollicis, on the radial side. 



3. The pronator radii quadratns. 



4. The supmator radii brcvis. 



You are expected to dissect these muscles and study critically their specific 

 attachments to bone, and make your dissection tally with the origins as indicated 

 on the bones in figure 124. 



The flexor profundus digitorum is seldom well learned, because students 



