THE CIRCULATION 



171 



Haemo- 

 static 

 Pressure. 



Hsemodynamic 

 Pressure. 



p-i 



p + 5 



+ 2 



+ 1 



+ 2 



+ 10 



+ 16 



+ 13 



+ 10 



Total Pressure . 



-2 



+ 6 



+ 6 



+ 16 



+ 18 



+ 12 +20 



SCHEME OF BLOOD-PRESSURE EELATIONS IN THE SYSTEMIC 

 CIRCULATION IN THE VERTICAL POSITION. (THOMA.) 



A = level of top of head ; B = level of venous orifices ; = level of 

 umbilicus ; D = level of feet ; p = pressure at venous orifices in cm. 

 of mercury. 



