34 THE HUMAN BODY. 



2, The common belief that the growth of the frame of 

 an animal or of a child may be checked by alcohol or 

 tobacco is reasonable. 



3, Drunkenness in parents is one of the causes of the 

 bone-diseases which deform scrofulous children. 



QUESTIONS. 



SECTION I. 1. What is the skeleton ? What three purposes does 

 it serve? Can an animal body destitute of bones move? If so, in 

 what way ? 



2. What are the two main cavities formed by the skeleton? 

 How are the skull and backbone especially fitted to protect their 

 contents ? What are the two main divisions of the cavity of the 

 trunk ? What is that portion of the lower division which is between 

 the hip-bones called? What is the name of the partition between 

 chest and abdomen? Is there any partition between abdomen and 

 pelvis ? What are the bony walls of the chest? What are its prin- 

 cipal contents ? Why is not the abdomen as well walled as the 

 thorax ? 



3. How many bones are there in the body ? In the spinal column ? 

 In the head? In the trunk? In the upper limbs? In the lower 

 limbs? 



SECTION II. 1. What bones of the skull are movable? What 

 organs of special sense are guarded by the bones of the skull ? 



2. What is the structure of a vertebra ? What is a process on a 

 bone? What canal do the vertebrae make when they are joined? 

 With what cavity is this canal continuous ? What springs are 

 found in the spinal column? What is the position of the sacrum ? 

 Of the coccyx ? 



3. What is the shape of a baby's spine? What are the natural 

 curves of the back ? What curves are unnatural ? What is the 

 harm of a stoop ? What are the causes of unnatural curves in the 

 backbone? 



4. How are the first seven ribs distinguished from the last five? 



