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Cellular membrane potentials and contractility of normal rat atrium and the effects of temperature, tension and stimulus frequency
- Source :
- Circulation research. 3(6)
- Publication Year :
- 1955
-
Abstract
- Simultaneous recording of membrane potentials and contractility in isolated rat atria by means of intracellular micro-electrodes and a sensitive strain gage has been used to establish the normal characteristics of the tissue as well as effects of temperature, stimulus frequency and initial tension on muscle. Preliminary correlations between duration of the action potential and the degree of contraction indicate that the rate of repolarization is of major importance in determination of the contractile response.
- Subjects :
- Membrane potential
Cellular membrane
medicine.medical_specialty
Contraction (grammar)
Physiology
Chemistry
Temperature
Heart
Cardiovascular physiology
Membrane Potentials
Rats
Contractility
Endocrinology
Stress, Physiological
Internal medicine
medicine
Biophysics
Stimulus frequency
Repolarization
Animals
Heart Atria
Cardiology and Cardiovascular Medicine
Intracellular
Muscle Contraction
Subjects
Details
- ISSN :
- 00097330
- Volume :
- 3
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Circulation research
- Accession number :
- edsair.doi.dedup.....b1766abc93cd4f623443ac7ac674dd78