216 



EXPERIMENTAL PHARMACOLOGY 



caused any permanent change in the lungs or bladder that 

 yon can detect by the results of your second injection? 

 Give more adrenaline to revive the animal. Do you see 

 the reflected effects of the filling and emptying of the heart 



c |II-M - 



Flexible rubber catheter 



Class catheter 



Metal catheter 



Fig. 206. Three kinds of catheters. 



in your lung tracing? Stop the artificial respiration for a 

 few seconds and watch for the heart action to affect the 

 lung tracing. 



Fig. 207. Dissection showing the position and relation of the organs and struc- 

 tures within the lower pelvis (dog). The pubes were sawed apart and the left side of 

 the bone shows at L.S.P. A, probe passed into the urethra, Ur; B, probe passed in the 

 vagina, V; R.S.P., right edge of the (divided) symphasis pubis; V, vulva; F.C., fossa 

 clittoridis; Cl, clittoris; W. V ., vaginal wall; Bl, bladder; R.L '., right ureter entering the 

 bladder; R, rectum; Ut, uterus. 



