CHAPTER V 



THE MUSCULAR SYSTEM 



67. Though the skeleton preserves the shape of the 

 body, the muscles with the surrounding fat fill out the 

 figure, giving roundness and grace of outline. Muscles 

 and bones, with the tendons and ligaments connecting 

 them, constitute the organs of motion and locomotion: 

 they are the apparatus by means of which the nervous 

 system acts when the object sought is movement; as the 

 stomach, liver, blood vessels, kidneys, and other parts 

 of the digestive system are the apparatus which the nerv- 

 ous system uses for the 



purpose of nutrition. 



68. The Muscles are the 

 lean part of meat. They 

 make up that part of the 

 body which we call flesh. 

 When a muscle is exam- 

 ined, it is found to consist 

 of small fibers bound to- 

 gether in bundles (Fig. 

 39), each bundle being 

 wrapped in a thin sheath 



of areolar tissue, called perimysium, while each minute 

 fiber of which a bundle is composed has also its mem- 

 branous sheath, called the sarcolemma. 



59 



Fig. 39. Bundles of striated 



muscle cut across. 

 ff several bundles bound together into 

 larger bundles to make up the muscle. 



