PRACTICAL ANATOMY. 



connective tissue between the muscle and the ones on each side of it. Be careful, 

 in doing this, not to destroy the vessels and nerves ; these structures will become 

 numerous in the region of the elbow. Trace these adjacent muscles also up to 



their origin. 



Extensor oasis metacarpi 

 pollicis 



Extensor carpi ulnaris 



Extensor communis digitorum 



Extensor minimi digit! 



Extensor indicia 



Attachment of extensor 

 oommunis digitorum 

 to second phalanx 



Attachment of extensor 

 communis digitorum 

 to third phalanx 



FIG. 244. TENDONS UPON THE DOKSIM 01 THE HAND. 



Trace the superficial group to origin as follows (Fig. 243) : 



1. Extensor communis digitorum to the outer condyle of the humerus. 



2. Kxtensor minimi digiti to the outer condyle of the humerus. 



3. Kxtensor carpi ulnaris to the outer condyle of the humerus. 



Notice the triple origin of the- extensor carpi ulnaris: (i) The outer con- 



