THE BONES AND JOINTS. 35 



Which are called floating-ribs? What are the costal cartilages? 

 What is their use ? What are the effects of compressing the chest 

 and waist ? 



5, Describe the sternum? 



6, Where is the hyoid bone situated ? and what important organ 

 is attached to it ? 



SECTION III. 1, What are the divisions of the upper limb ? 



2, What is the common name of the clavicle? What is its 

 situation ? 



3, What is the common name of the scapula? What is its 

 situation ? 



4, Name the arm-bone. 



5, What are the bones of the fore-arm ? Which rolls over the 

 other ? Which is most closely connected with the hand ? 



6, What are the divisions of the hand ? 



7, How many bones in the carpus ? 



8, How many bones in the metacarpus ? How many phalanges ? 

 What in the human hand especially gives it an advantage over the 

 hands and paws of lower animals? 



SECTION IV. 1. What are the divisions of the lower limbs? 



2, Why is the hip-bone called the os innominatum ? 



3, What is the longest bone in the body ? 

 4 Where is the patella situated ? 



5, Name the leg-bones. What is the shin? What is the use of 

 the fibula? 



6, What are the divisions of the foot ? 



7, How many bones in the tarsus? In the metatarsus? How 

 many phalanges ? 



8, What is the effect of wearing too tight shoes ? Of having a 

 high heel under the middle of the foot? What is the natural 

 direction of the great toe ? What is the proper shape for a shoe ? 



SECTION V. 1. Is a bone solid all through ? What part is hol- 

 low ? What part is filled with thin-walled cells ? What is contained 

 in the cavity ? Why is it hollow ? Why are the ends of the long 

 bones enlarged? 



2, What is the structure of a short bone ? 



