212 



PRACTICAL ANATOMY. 



EXTENSOR INDICIS. 



Origin Posterior surface of ulna, interosseous mem- 

 brane. 



FIG. 94. EXTENSOR TENDONS OF HAND. 



1, extensor primi internodii pollicis ; 2, first dorsal interosseous ; 3, extensor indicia ; 4, 

 extensor communis ; 5, extensor communis ; this tendon sends lateral processes to the 

 extensor tendons of the middle and little fingers; 6, annular ligament. 



Insertion Into the dorsal surface of second and third 



phalanges. 

 Nerve Posterior interosseous. 



