ANATOMY OF THE HEART. 



255 



ILJi. indicates the lymphatics, which drain the tissues, and Lc. 

 the lacteals, which absorb from the stomach and intestines (I). 



FIG. 114. 



The Left Auricle and Ventricle opened and part of their walls removed 

 to show their cavities. (Allen Thomson.) 1. Eight pulmonary vein cut 

 short. 1'. Cavity of left auricle. 3. Thick wall of left ventricle. 4. Por- 

 tion of the same with papillary muscle attached. 5, 5'. The other papil- 

 lary muscles. 6. One segment of the mitral valve. 7. In aorta is placed 

 over the semilunar valves. 



Although the blood enters the arteries by jerks, the motion 

 through the capillaries is constant. The reason of this is, that 



