32 



HANDBOOK OF ANATOMY 



The first one differs from the rest in being a hinge-joint ; the 

 others are modified ball-and-socket, so that movement takes 

 place round two axes : 



Transverse flexion and extension. 



Antero-posterior abduction and adduction. 



Flexor Carpi Ulnaris - 



Flexor Sublimis Digitcrum f j r 



Anterior Annular ^_ 



Ligament 



Abductor Minimi 



Digiti 



Flexor Brevis Minimi. 



Digiti 



Opponens Minimi 



Digiti 



3rd Palmar Inteross. 



4th Dorsal Inteross. 



2nd Palmar Inteross 



3rd Dorsal Inteross.*"" 

 and Dorsal Inteross., 



Flexor Carpi Radialis 

 Flexor Longus Pollicis 



NJr. Abductor Pollicis (cut) 



Opponens Pollicis 



. Superficial Head of Fiercer 

 Brevis Pollicib 



Add. Obliquus 

 Pollicis 



Add. Trans. 

 Pollios 



XAbductor 

 Pollicis (cut) 



-- Flexor Longus 

 Pollicis 



-~.ist Dors.. I 

 Interosscons 



-^ist Palmar 

 Interosseo.is 



^-.ist Lumbricalis 



FIG. 10. MUSCLES OF THE HAND (PALMAR ASPECT). 



Ligaments. A capsule, completely surrounds each joint, which 

 is very much weaker on the dorsal surface, where the joint is 

 strengthened by the expansion of the extensor tendon. 



Ulnar and Radial Lateral ligaments, strong cord-like bands 



