46 



TOPOGRAPHICAL ANATOMY OF 



followed later down the rest of the limb to its ultimate insertion into 

 the flexor area of the third phalanx. 



Accessory carpal bone (pisiform) 

 M.. extensor carpi ulnaris. 



11. flexor carpi 

 ulnaris. 



M. extensor carpi ulnaris. 



Radius. 



Ulnar carpal bone 

 (cuneiform) . 



Fourth carpal bone /- - 



(unciform). 



Intermediate carpal bone 

 (lunar). 



Third carpal bone 

 (magnum). 



M. extensor carpi radialis. 



Third metacarpal bone. 



Fourth metacarpal bone. _ 

 p IG> 26. — Lateral Aspect of the Carpus, etc., with Areas of Muscular Attachment. 



Intermediate carpal bone 

 (lunar). 



Ulnar carpal bone 

 (cuneiform). 



Fourth carpal bone 

 (unciform). 



M. extensor carpi ulnaris. 



Fourth metacarpal bone. 



Radial carpal bone 

 (scaphoid). 



Second carpal bone 



(trapezoid). 

 Third carpal bone 



(magnum). 

 Second metacarpal bone. 



M. extensor carpi radialis. 

 Third metacarpal bone. 



Fig. 27.— Dorsal (Anterior) Aspect of the Carpus, etc., with Areas of Muscular Attachment 



The tendons of the superficial and deep flexor muscles are enclosed 

 in a common synovial sheath (vagina carpese) that extends upwards 



