TONUS CHANGES IN CARDIAC MUSCLE AND THEIR SIGNIFICANCE FOR THE INITIATION OF IMPULSES
- 1 July 1943
- journal article
- research article
- Published by American Physiological Society in American Journal of Physiology-Legacy Content
- Vol. 139 (3) , 477-480
- https://doi.org/10.1152/ajplegacy.1943.139.3.477
Abstract
The tension of ventricular muscle from the turtle drops below the previous resting level following a response, indicating the presence of a tonic contraction in resting muscle. After treatment with an excess of Ca ions, responses are followed by gradually decreasing oscillations of tension. The tonus changes accompany the local potentials previously described. These non-conducted changes in the activity of the muscle are responsible for the initiation of impulses.This publication has 4 references indexed in Scilit:
- THE INITIATION OF IMPULSES IN CARDIAC MUSCLEAmerican Journal of Physiology-Legacy Content, 1943
- THE ACTIVITY OF THE PACEMAKER PREVIOUS TO THE DISCHARGE OF A MUSCULAR IMPULSEAmerican Journal of Physiology-Legacy Content, 1942
- RECTIFICATION AND INDUCTANCE IN THE SQUID GIANT AXONThe Journal of general physiology, 1941
- THE QUESTION OF CARDIAC TONUSPhysiological Reviews, 1927