Cardiac, aortic, pericardial, and pulmonary receptors in the dog. Cardiology 1980;65(2):85-100
Date
01/01/1980Pubmed ID
7363286DOI
10.1159/000170798Scopus ID
2-s2.0-0018888540 (requires institutional sign-in at Scopus site) 16 CitationsAbstract
Afferent nerve activity from left and right atrial, left and right ventricular, interventricular septal, papillary muscle, pericardial, aortic and pulmonary vascular receptors was recorded from the left T3 white ramus communicans and the innominate, dorsal, recurrent, ventromedial, craniovagal and caudovagal cardiac nerves in alpha-chloralose-anesthetized dogs. The receptors were localized and the nature of the stimuli required to excite these receptors was also determined. Some ventricular receptors were excited during maximal contraction of the myocardium. Other ventricular and aortic receptors were stimulated by elevation of intracardiac or aortic pressure. The pericardial, atrial, and papillary muscle receptors were excited by stretching the surrounding tissue. The discharge patterns of these receptors were not always synchronous with the events of the cardiac cycle. The stimuli required to excite each type of receptor (ventricular, atrial, etc.) and their resultant discharge patterns were not identical for all of the receptors. Excitation of cardiac receptors with sympathetic afferents resulted in 1--2 spikes per cardiac cycle, whereas receptors with vagal afferents resulted in bursts of spikes per cardiac cycle.
Author List
Peters SR, Kostreva DR, Armour JA, Zuperku EJ, Igler FO, Coon RL, Kampine JPAuthor
Edward J. Zuperku PhD Professor in the Anesthesiology department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
Action PotentialsAnimals
Aorta
Blood Pressure
Dogs
Heart
Heart Atria
Heart Ventricles
Neurons, Afferent
Papillary Muscles
Pericardium
Pulmonary Veins
Sensory Receptor Cells
Stimulation, Chemical
Sympathetic Nervous System
Thoracic Nerves
Vagus Nerve
