210 ADVANCED PHYSIOLOGY 



the middle of his body and allow the water to run out of his 

 mouth. 



Lay the patient on his stomach with the head turned to one 

 side* so that his mouth and nose are away from the ground. 

 Either kneel at his side or sit on his hips and then place the 

 hands upon the small of his back, with the thumbs near the 

 spine and the fingers spread out over the lower ribs. Then 

 throw your weight onto the hands for about the time it takes to 

 count three slowly, and then slowly swing yourself backwards so 

 as to release the pressure. After three more counts repeat the 

 whole movement. The pressure when your weight is thrown 

 forward forces air out of the patient's lungs and the release of 

 the pressure causes them to fill again. This produces what is 

 called artificial breathing. Continue this process about twelve 

 tunes a minute without any pauses. Do not be discouraged f< 

 an hour at least. Pause occasionally to see if natural respin 

 tion has started, by holding some light object in front of the 

 nostrils. If there is any motion showing natural breathing, 

 cease the artificial respiration and wrap the patient warmly. 1 



THE VOICE 



While the tongue is popularly associated with the voice, 

 it is really only an agent which modifies sounds made nej 

 the entrance to the windpipe. It would be possible for OIK 

 to make himself perfectly understood, even if his tongue wei 

 removed. The words spoken by such an individual woulc 

 be badly pronounced, but just as loudly and nearly as intel- 

 ligibly as those spoken by a normal person. 



The Larynx. The voice box, or larynx, as it is technical!] 

 called, is located just below the glottis in the trachea; Fig. 

 The whole trachea is supported by incomplete rings of carti- 

 lage, but in the larynx region they are especially formed 



1 If practical, demonstrate this process of artificial respiration upon soi 

 person in the presence of the class. 



