DIGESTION, CIRCULATION, AND ABSORPTION 287 



2. The blood vessels. 

 a. 



b. 

 c. 



3. The lymph and lymph vessels. 



Y. The course of the circulation. (Represent it by means 

 of a diagram.) 



e. Use of a Tourniquet 



Observations. 1. Study Figure 68, in order to learn where 

 best to apply a tourniquet. Practice making and applying 



FIG. 68. Regions where some large arteries lie near the skin. 



one made of a ruler or stick, pocket handkerchief or towel, 

 and a pebble or any such solid. See Figure 69. 



2. Practice finding the pulse in the ankle or wrist, and then 

 press on the artery above these points until the pulse is stopped. 



Conclusion. Where must a tourniquet be placed with 

 reference to the cut and the heart (1) if a cut artery ? (2) 

 Vein ? 



