THE ADRENAL BODIES 



FIG. 51. Cat, 2 K. Ether, vagi cut, both splanchnics cut in thorax. 

 1. Right splanchnic stimulated. 2. Right splanchnic stimulated after 

 the adrenal veins had been clamped on the right side. 



During the period of the first rise of blood-pressure under 

 splanchnic stimulation there is marked passive dilation of the 

 denervated limb. This is followed by pronounced constriction. 

 In experiments on this subject we have always employed ether, 

 morphine, and curare. When the adrenal veins are clamped or 

 tied this constriction does not occur. Thus, our results are in 

 accord with those of Anrep (see Figs. 52 and 53). 



Anrep believes that the constriction of a denervated limb 

 during the pressor response to stimulation of the central 

 end of the sciatic nerve is due to the action of adrenin. He 



FIG. 52. Dog, 16 K. Ether, morphine, curare, vagi cut. Upper curve, volume 

 of denervated hind limb ; lower curve, carotid blood-pressure. Time 

 tracing in seconds. The right splanchnic was cut in the thorax and 

 the peripheral end stimulated. 



