438 



PRACTICAL ANATOMY. 



Name tJic ligaments of the carpo-metacarpal articulation of tlie tJiumb. This is 

 a capsular ligament. 



In this joint are found all the movements except axial rotation. 



Name the ligaments of the four inner carpo-metacarpal articulations. 



They are dorsal, palmar, and interosseous. 



How are these joints supplied witJi nerves / 



By the ulnar median and posterior interosseous. 



How many intcrmetacarpal articulations are t lie re f 



Four ; bound together by dorsal, palmar, and interosseous ligaments. 



How are the heads of the metacarpal bones held together ? 



By transverse ligaments. In front of these ligaments pass the lumbrical 

 muscles, with the digital vessels and nerves ; behind, pass the interossei muscles. 



Here are seen the reflected 

 tendon of the rectus and 

 the triangular ' ilio-tro- 

 ohanterio' band 



Ischio-femoral band 

 This is placed ou the weak 

 portion of the capsule 



FIG. 307. POSTERIOR VIEW OK THE CAPSULE OK THE HII--JOINT. 



The metacarpo-pJialangeal articulations are jive in number. 



Class, diarthrosis ; subdivision, condylarthrosis. The ligaments are lateral and 

 glenoid. The nerves and arteries come from the digital branches. 



Classify the intcrplialangcal articulations. 



They belong to the class diarthrosis ; subdivision, ginglymus. The proper 

 ligaments are lateral and glenoid. Dorsally, the tendon of the extensor com- 

 munis digitorum acts ligamentously ; on the palmar surface, the tendons of the 

 flexors. The articular arteries and nerves come, according to the rule, from the 

 vessels and nerves that supply the muscles that move these joints. 



THE HIP-JOINT. 



1. Class. Diarthrosis ; axial rotation and four angular movements. 



2. Subdivision. Knarthrosis or ball-and-socket. 



