. 



QUESTIONS. 335 



How do the nerves, which are given off from the 

 spinal marrow, find their way out of this canal ? 



How are the vertebras apportioned to the neck, back, and loins, 

 and how are they named ? Which are the largest? To which are the 

 ribs attached ? What is the sternum ? How are the ribs connected 

 with the sternum? What is the thorax? Name the two important 

 organs it contains. What is the diaphragm ? What is the cavity 

 below the diaphragm called ? Name some of the important organs it 

 c Dntains. What is the pelvis ? 



What are the extremities ? Of how many parts is the upper extrem- 

 ity composed? (P. 22.) How many bones form the shoulder? the 

 arm? the fore-arm? the wrist? the fingers and thumb? How <aa 

 many bones in all ? How are these bones united together ? By what 

 means are the bones which move upon each other, prepared for free 

 and easy movement ? 



Of how many parts is the lower extremity composed ? Describe the 

 thigh-bone ? How is the hip-joint formed ? How many bones, and 

 what are they, which unite to form the knee-joint? Of what is the leg 

 composed ? Describe the ankle ;. the toes. 



What "forms the covering of the bones? What are the muscles? 

 How do the contractions of the muscles act so as to produce motion ? 

 What are the tendons for ? 



What are the three grand cavities which enclose the organs of respi- 

 ration, Circulation, digestion, &c. ? 



Describe the process of taking food. What is the oesophagus ? What 

 is the cardiac orifice of the stomach ? Describe the form and position 

 of the stomach. (P. 23.) What peculiar fluid does it secrete ? De- 

 scribe its properties. Describe the formation and appearance ot 

 chyme. What is the name of the lower orifice of the stomach? "^C* 



What other fluids are brought to act upon the chyme in its course 

 after leaving the stomach? By what is the bile secreted? Where is 

 the liver? Describe the bile. Name the position of the pancreas, and 

 describe its fluid. What effect is produced upon the chyme, by the 

 .mixture of the bile and pancreatic juice ? What is chyle? How is it 

 absorbed for the nourishment of the system ? 



Where is the chyle conveyed, when taken up by thelacteals ? What 

 is the course of the thoracic duct? Into what does the thoracic duct 

 empty? Where does the subclavian vein come from? With what is 

 the chyle mingled in the subclavian vein ? Do or do not all kinds of 

 food produce the same quantity and quality of chyle? Which affords 

 the greatest amount of nourishment, animal or vegetable food ? Which 

 is most easy of digestion ? What animals have the most complicate 

 digestive apparatus ? Why? 



(P. 24.) How is the change in the chyle from milky-white to red 



