HIP-JOINT. 165 



is placed between the carpal bones. This sy no vial sac 

 forms, when the thumb is directed 

 to the right, a double letter " D," 

 entirely surrounding the os magnum 

 and trapezoid. 



Surrounds the Surrounds the 

 os magnum. trapezoid. 



METACARPOCARPAL ARTICULATIONS. 

 LIGAMENTS : 



DORSAL. Posterior surface of carpus to carpal end of 



metacarpus. 

 PALMAR. Anterior surface of carpus to carpal end of 



metacarpus. 



INTEROSSEOUS. Short fibres between the carpus and 

 metacarpal bases. 



INTERMETACARPAL ARTICULATIONS. 

 LIGAMENTS : 



ANTERIOR. Pass from base to base. 

 POSTERIOR. Pass from base to base. 

 INTEROSSEOUS. Pass between base and base. 

 METACARPO-PHALANGEAL ARTICULATIONS. 

 LIGAMENTS : 



ANTERIOR. Strong, thick. 



Origin Head of metacarpal. 

 Insertion Base of phalanx. 

 Two LATERAL. Strong, thick. 



Origin Tubercle at side of metacarpal. 

 Insertion Side of base of phalanx. 



PHALANGEAL ARTICULATIONS. 



LIGAMENTS : Anterior and two lateral, arranged as in the 

 metacarpo-phalangeal articulation. 



HIP-JOINT. 

 LIGAMENTS : 



COTYLOID. Fibre-cartilaginous. Attached to the rim 



