GENERAL SCHEME 



275 



walls of the intestine (ALC.). The waste matter is eliminated, 

 as we have seen, by a capillary mechanism in the kidney. Chemical 



FlO. 58. Vertical Mesial Section through Heart to show Aortic and Mitral Valves. 

 R.V., right ventricle ; L.V., left ventricle with papillary muscle ; L.A., left auricle 

 with the mitral valve extending into the left ventricle : Ao., aorta with anterior cusp 

 on top of septum. 



(Noel Patou's Essentials of Human Physiology.) 



CAP 



ART. 



FIG. 59. Scheme of the Circulation. S.H., systemic heart sending l>ln ( ,<l 

 to the capillaries in the tissues, Cap. The blood brought back by veins, and the 

 exuded lymph by lymphatics, Ly., passing through glands ; blood sent to the nli- 

 mentary canal, Al.C., and from that to the liver, Lir. ; blood also sent to the kidneys, 

 Kid. ; the blood before again being sent to the body is passed through the lungs by 

 the pulmonic heart, P.JI . 



(Noel Paton's Essentials of Human Physiology.) 



changes occur on the passage of the blood through the capillaries 

 of certain factories, e.g. liver and spleen. The loss of oxygen is 



