Affiliation:
1. Escuela National de Medicina Rural and Escuela Nacional de Ciencias Biologicas, Instituto Politéenico Nacional Mexico City, Mexico
Abstract
The distention of a large branch of the pulmonary artery, with or without occlusion of the circulation, produces pulmonary hypertension. The occlusion of an entire hilum, without adequate stimulation of the arterial baroreceptors produces only a negligible increase in pulmonary arterial pressure. Together with the pulmonary hypertension, variable changes in the systemic pressure were observed. The most frequent reaction was hypotension. The vagal fibers play no role in the pulmonary hypertensive response.
Publisher
Ovid Technologies (Wolters Kluwer Health)
Subject
Cardiology and Cardiovascular Medicine,Physiology
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