182 



PR A CTICAL ANA TO MY. 



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

 its accompanying artery and venae comites. Now 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 profundus digitontin, on the ulnar side. 



Pectoralis min 



Short head of bice 



Coraco-brachialis 



Long head of triceps 



Long head of bicer 



^3 Insertion of pectoralis major 



Inner head of triceps 



Internal-intermuecular septum 



Brachialis anticus 



S&ML Outer part of brachialis anticug 



Insertion oi biceps 



FIG. 127. I)KKi' VIK\V OF run FRONT 01-- TIIK I'ITKK ARM. 



2. The flexor longus po/licis, on the radial side. 



3. The pronator radii quadrat us. 



4. The sjtpinator radii brcris. 



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 hones in figure 124. 



The flexor profundus digitorum is seldom well learned, because students 



