Tonic Influence of Rostral Brain Structures on Pressure Regulatory Mechanisms in the Cat

See allHide authors and affiliations

Science  03 Jul 1964:
Vol. 145, Issue 3627, pp. 64-65
DOI: 10.1126/science.145.3627.64


Transection of vagi and carotid sinus nerves in anesthetized cats results in a rise of blood pressure and subsequent decerebration results in a fall. Decerebration alone results in a slight drop in blood pressure unchanged by subsequent nerve section. Rostral brain structures principally influence tonically brainstem mechanisms subserving baroreceptor reflex excitability rather than those maintaining normal blood pressure.