Abstract
The vascular reactions and gastro-intestinal effects resulting from stimulation of the sub-cardiac vagus were studied in chloralosed dogs. Carotid blood pressure records and the intestinal balloon tambour system were used. Motor effects on the intestine were abolished by atropine and unaffected by sympathetic paralysants, and are due to parasympathetic fibers, Vascular vagal fibers exist which on excitation yield hypertension and hypotension and appear to be sympathetic elements. Vagal excitation caused renal constriction in certain cases.

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