THE GENERAL STRUCTURE OF THE HUMAN BODY 3 



because with them we do some special work like writing, 

 sewing, or playing the piano. 



3. Tissues of the body. When we squeeze the arm or 

 the hand, we feel the hard bones within that form the skele- 



right lung 



liver 



diaphragm 



large intestine 

 opened 



~~ large intestine 



small intestine 

 (opened) 



bladder 



FIG. 2. Organs of chest and abdomen (front view). 



ton. We can raise from the bones the softer fleshy material, 

 which is composed of muscle covered by skin. By clenching 

 the fingers tightly we can see and feel on the inner side of 

 the wrist the tough cords or tendons of connective tissue that 



