2 THE HUMAN BODY. 



Anatomy. Clearly, the first step to be taken towards 

 finding out the use and mode of working of each part 

 of the body is to find out what the parts are ; this study 

 is known as Human Anatomy. Examined merely from 

 the exterior, the body is quite a complicated structure : 

 we can all see for ourselves, head and neck, trunk and 

 limbs, and even many smaller but quite distinct parts 

 entering into the formation of these larger ones, as eyes, 

 nose, ears, and mouth ; arm, forearm, and hand ; thigh, 

 leg, and foot. This knowledge of its complexity, which 

 we may all arrive at by looking en the outside of the body, 

 is vastly extended when it is dissected and its interior 

 examined ; we then learn that it is made up of many 

 hundreds of diverse parts, each having its own structure, 

 and form, and purpose, but all harmoniously working 

 together in health. 



Summary. Anatomy is concerned with the form and 

 structure and connections of the parts of the body. 

 Physiology with the uses of the parts, and the ways in 

 which they work. Hygiene with the conditions of life 

 which promote the health of the body. 



Microscopic Anatomy or Histology. When we exam- 

 ine the body from its exterior, we observe that a number 

 of different materials enter into its formation. Hairs, 

 nails, skin, and teeth are quite different substances ; by 

 feeling through the skin we find harder and softer solid 



What is human anatomy ? Give illustrations of the complexity 

 of the body in structure? Is its internal structure as varied as its 

 external? 



State in a few words the subject matters of the sciences of Human 

 Anatomy, Physiology, and Hygiene. 



Give examples of the variety of substances entering into the com- 

 position of the body. What may we feel through the skin ? 



