Abstract
Summary
Stimulation of the cervical vagosympathetic trunk may elicit either inhibitory or excitatory responses in the heart, or a combination of both, depending upon the varying content of parasympathetic, sympathetic, and afferent nerve fibers. Visceral afferent fibers contribute importantly to reflex feedbacks to the heart, as well as to recruitment of peripheral circulatory and neurohumoral mechanisms of cardiovascular control. Profound pressor responses may be elicited by excitation of afferent fibers within the cervical vagosympathetic trunk.
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