160 EXHALENT SYSTEM. 



.#. The organic sensibility and insensible organic con- 

 tractility are diminished. 



Q. What locality has haemorrhage in organic disease? 



A. Proximity to the mucous surface governs it; for in- 

 stance, when the liver is diseased, the haemorrhage will be 

 from the mucous expansion of the stomach or intestines; 

 when the heart is diseased, the bleeding will be from the 

 pulmonary mucous tissue. 



Q. Does the whole mucous tissue ever pour out blood 

 at one time? 



ft. Never. 



Q. Why are the mucous tissues so liable to haemor- 

 rhage ? 



/?. The short course of the blood in the capillaries to 

 the mucous surfaces, and the general fulness of these tis- 

 sues with blood. 



Q. Which mucous surfaces are least liable to haemor- 

 rhage ? 



/?. Those lining the sinuses of the face and ear. 



Q. Is plethora necessary to active haemorrhage? 



#. It is not; for a mere local increase or alteration oi 

 the vital forces will produce it. Hence there may be ac- 

 tive haemorrhage without plethora. 



Q. How will you account for the varieties in the quan- 

 tity of the menstrual discharge ? 



A. It varies as the vital forces of each uterus do. 



Q. What essential difference must be observed in the 

 treatment of capillary and exhalent haemorrhage, and ar- 

 terial ? 



Jt. In the haemorrhage from the two first named sources, 

 medicines which act on the organic sensibility of the part 



