186 PHYSIOLOGY FOR DENTAL STUDENTS. 



. . Kidney Volume ~s S\/^*~' 



Kidney Volume 



Ufb 

 nerve cut 



^/^J^^V^^^' 



Ridhb Vodus 

 nerve cut 



Blood pressure 



Mryection 

 of dilute 

 oa renal in 

 .solution. 



No.II 



Time in seconds 



Time in seconds 



No.EZ 



Rapid bleeding *5low bleeding 



Time in seconds 



NO.Y 



Fig. 26. Tracings of arterial blood pressure (taken with apparatus in l'"\x. 

 21) and of kidney volume (taken with volume recorder) showing the effect of: 

 I. Stimulation of the vagus nerve. 

 IT. Stimulation of the splanchnic nerve. 



III. Cutting one vagus nerve. 



IV. Injection of epinephrin (adrenalin). 

 V. Haemorrhage. 



The tracings all read from right to left. 



