cardiac action potential propagation
Remote Monitoring of the Heart Condition of Athletes by Measuring the Cardiac Action Potential Propagation Time Using a Wireless Sensor Network
... A delay in the AP Propagation is very useful for assessment of myocardial injury. This has been noted from the external ECG waveforms through Q wave changes, T wave abnormality, ST deviation and Q_T interval. ...
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An Electromagnetic Field Model of Cardiac Excitation on Transverse Electric Current to Induce The Magnetic Field
... on cardiac action potential ...qualitative propagation behaviour ...of cardiac excitation propagation could be viewed as being oversimplified with respect to cellular-level ...
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Uncertainty and variability in models of the cardiac action potential: Can we build trustworthy models?
... Case Study 2 demonstrates the power of Gaussian Process (GP) emulators. Emulators (fast-running surrogates of computationally- demanding models) in general, will be important for uncertainty propa- gation and sensitivity ...
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Transverse propagation of action potentials between parallel chains of cardiac muscle and smooth muscle cells in PSpice simulations
... (F). Propagation down chain A was uniform and about 33 ...for propagation longitudi- nally in cardiac muscle usually range between 30–50 cm/ ...Transverse propagation into chain B occurred at ...
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Cardiac dynamics: a simplified model for action potential propagation
... transmembrane potential produced by a sum of ionic gated cur- ...specific cardiac cells have been proposed ...any cardiac risk for the patient, or to check conditions not easily reproducible in ...
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Boundary effects influence velocity of transverse propagation of simulated cardiac action potentials
... transverse propagation of cardiac action potential (APs) simulated by PSpice in a 5 × 5 model [4,5] was reviewed by the journal, one unanswered question was whether edge (boundary) effects ...
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Action potential repolarization enabled by Ca++ channel deactivation in PSpice simulation of smooth muscle propagation
... different cardiac muscle and smooth muscle preparations ...of propagation in cardiac muscle, firing of the pre-junctional membrane generated an electric field (EF) in the narrow junctional clefts, ...
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Dispersion of cardiac action potential duration and the initiation of re-entry: A computational study
... In the heterogeneous virtual tissues the wave back was not a plane wave because some regions repolarised more quickly than others. A premature S2 stimulus could pro- duce a wavefront that would encounter a mixture of ...
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Dispersion of cardiac action potential duration and the initiation of re-entry: A computational study
... 3.1 Propagation and APD dispersion during pacing Figure 3 shows the spatial distribution of APD 90 in vari- ants of the virtual tissue during pacing at a cycle length of 500 ms from the bottom ...
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Repolarization of the action potential enabled by Na+ channel deactivation in PSpice simulation of cardiac muscle propagation
... latter allowed repolarization of the AP to occur. BB-2 is connected between the outside and inside of the mem- brane unit, with reversed polarity compared to BB-1, as shown in Figure 1. The outputs of BB-1 and BB-2 were ...
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Mathematical modelling of the action potential of human embryonic stem cell derived cardiomyocytes
... the cardiac phenotype are rather demanding due to difficulties such as i) low efficiency process of differentiation [5]; ii) dishomogeneity of cell phenotypes; iii) laborious phenotypic characterization, ...
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AN ANALYSIS OF CONTROL OF THE VENTRICLE OF THE MOLLUSC MERCENARIA MERCENARIA
... attentuate cardiac APs measured using the sucrose-gap method are conductivity of the bathing saline, configuration of the muscle across the gap, resistance of the gap and capacitive coupling between recording ...
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Intestinal myoelectric activity in response to live Vibrio cholerae and cholera enterotoxin
... migrating action potential complexes (MAPC). An MAPC was defined as action potential discharge with a duration of ...mean propagation velocity of ...
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The Parameters and Properties of a Group of Electrically Coupled Neurones in the Central Nervous System of a Hydrozoan Jellyfish
... Duration of action potentials, propagation distance and membrane potential Recordings from SMN neurones during spontaneous swimming in 'intact margin' and 'half margin' preparations show[r] ...
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The effect of myocardial action potential duration on cardiac pumping efficacy: a computational study
... In addition, cardiac tissues composed of cells with shortened APD have short wave- lengths even if the conduction velocity is the same (Fig. 3). These results are consistent with those of Roden et al. [6]: in cell ...
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Correlating cardiac action potentials with metabolic markers during acute cardiac ischemia in rabbit hearts
... of cardiac muscle usually begins at the sinoatrial node, the impulse generating (pacemaker) tissue located in the right atrium of the ...or action potential (AP), propagates throughout the heart via ...
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Ectopic expression of KCNE3 accelerates cardiac repolarization and abbreviates the QT interval
... with action potential recordings in isolat- ed E3-transduced myocytes, the QT interval of the ECG in E3-transduced animals was abbreviated significantly compared with baseline (QTc of 158 ± 4 milliseconds ...
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Ionic Basis of Action Potential Propagation Along two Classes of ‘Giant’ Axons in the Ophiuroid, Ophiopteris Papillosa
... Such responses were only observed for stimuli above a definite threshold and consis-d ted of a multi-component compound action potential with two distinct early spikes arrows 1 and 2 fol[r] ...
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Attentuation of cardiovascular remodelling in DOCA-Salt rats by the Vasopeptidase inhibitor, Omapatrilat
... that cardiac fibrosis, but not hypertrophy, associated with DOCA-salt hypertension was corrected by inhibition of the renin- angiotensin system with the ACE inhibitor captopril, the AT1 receptor antagonist ...
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← Return to Article Details A Conceptual sutdy of vyan vayu w.s.r. to action potential
... Ayurveda is ancient science majorly based on observations. Modern science is majorly based on experiments. On many instances we came across, the similarity in principles of both medical sciences. By comparing or ...
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