[Role of the parasympathetic division of the autonomic nervous system in regulating blood coagulation and fibrinolysis following intravenous injection of thrombin].

Cats with partial inactivation of the parasympathetic portion of the vegetative nervous system, after injection of thrombin developed hypocoagulation, the amount of their natural anticoagulants increased as well as their fibrinolysis more obviously than in intact animals. The parasympathetic portion of the vegetative nervous system seems not to play a major role in the mechanism of secondary hypocoagulation after thrombin administration.