AND PHYSIOLOGY. 



69 



159. Structure of 

 Ligaments. Ar- 

 rangement of Liga- 

 ments. Capsular 

 Ligament. Round 

 Ligam ent. — The 

 bones are firmly 

 bound together by 

 ligaments. These 

 are for the most 

 part bands of white 

 glistening fibres, as 

 firm as steel, which 

 are composed of 

 white fibrous tis- 

 sue. They are gen- 

 erally very short, 

 and attached only 

 to the enlarged ex- 

 tremities of the 

 bone. In most of 

 the joints, and es- 

 pecially the gingly- 

 mus, the ligaments 

 are arranged in a 

 cross shape upon the 

 sides of the bones, 

 so that one bone may 

 glide freely over the 

 extremity of an- 

 other, as one half 

 of a door hinge 

 moves upon its other 

 half. In other in- 

 stances the ligament 

 surrounds the w T hole 



A magnified View of a Vertical section of Cartilage 

 from a new-born Kabbit, showing the progress towards 

 ossification. 1, The Ordinary appearance of Tempo- 

 rary Cartilage. V, The same, more highly magnified. 

 2, The Primary Cells beginning to assume the linear 

 direction. 2', The same, more highly magnified. 3j 

 The Ossification is extending in the intercellular 

 spaces, and the rows of cells are seen resting in the 

 cavities so formed, the Nuclei being more separ- 

 ated than above. 3', The same, magnified more 

 highly. 



