110 



HITCHCOCK'S ANATOMY 



remote from it is called its Insertion. These are exceedingly 

 firm and strong, perfectly inelastic, and can not be torn from 

 the bones without unnatural violence. If the extremity of 

 the muscle has a large surface for attachment, its tendon is 

 expanded into a broad membranous portion termed an Apo- 

 neurosis, as may be seen in the muscles inclosing the abdo- 

 men ; while the greater portion of the muscles have a fleshy 

 portion called the Swell or Belly, and the tendinous portion 

 contracted into the shape of a cord, or even of a thread. In 

 general this belly of the muscle is in a place which is the 

 most firmly fixed, and distant from the point to be moved, in 

 order to effect grace of motion, and beauty of form. 



Fig. 126. 



A Radiate Muscle. 



232. Forms of Muscles. — In form the muscles present a 

 great diversity. A Radiate Muscle (Fig. 126) is one where 

 the fibres radiate from a central portion to distribute them- 

 selves upon a large surface. In the Fusiform (Fig. 127) the 



Fig. 121. 



A Fusiform Muscle. 



fibres diminish in size from a center to each extremity. In 



What is the fleshy portion of the muscle called ? What is an Aponeurosis ? Define the 

 Origin and Insertion of a muscle. Where is the Belly of the muscle generally located ? 

 232. Describe the Radiate and Fusiform Muscles. 



