

MUSCLES OF THE HAND. 435 



It is inserted, tendinous, into the radial side of the first pha- 

 lanx of the ring finger. 



It draws that finger towards the thumb. 



4. The Interosseus Digiti Auricularis, 



Is at the radial side of the metacarpal bone of the little fin- 

 ger, and arises from the radial side and base of said bone. 



It is inserted, tendinous, into the radial side of the first pha- 

 lanx of the same finger* 



It draws the little finger towards the other. 



By removing the tendons of the extensor eommunis from- 

 the back of the hand, we see the three posterior or double- 

 beaded interosseous muscles* 



5. The Prior Medii, 



Is between the metacarpal bone of the fore and of the mid- 

 dle finger. It arises from the opposed roots and sides of these 

 bones. 



It is inserted, tendinous, into the radial side of the first pha- 

 lanx of the middle finger. 



It draws the middle finger towards the thumb, 



6, The Posterior Medii, 



Is between the metacarpal bone of the middle and of the 

 ring finger. It arises from the opposite sides and roots of these 

 bones. 



It is inserted, tendinous, into the ulnar side of the first pha- 

 lanx of the middle finger. 



It draws the middle finger towards the little. 



7. The Posterior Annularis, 



Is between the metacarpal bones of the ring and little finger. 

 It arises from the opposed sides and roots of these metiacarpal 

 bones. 



