Understanding the electrical behavior of the action potential in terms of elementary electrical sources.

@article{RodrguezFalces2015UnderstandingTE,
  title={Understanding the electrical behavior of the action potential in terms of elementary electrical sources.},
  author={Javier Rodr{\'i}guez-Falces},
  journal={Advances in physiology education},
  year={2015},
  volume={39 1},
  pages={
          15-26
        }
}
A concept of major importance in human electrophysiology studies is the process by which activation of an excitable cell results in a rapid rise and fall of the electrical membrane potential, the so-called action potential. Hodgkin and Huxley proposed a model to explain the ionic mechanisms underlying the formation of action potentials. However, this model is unsuitably complex for teaching purposes. In addition, the Hodgkin and Huxley approach describes the shape of the action potential only… 
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References

SHOWING 1-10 OF 34 REFERENCES
A novel approach to teach the generation of bioelectrical potentials from a descriptive and quantitative perspective.
TLDR
The survey results show that combining general principles of electrical fields with accurate graphic imagery gives students an intuitive, yet quantitative, feel for electrophysiological signals and enhances their motivation to continue their studies in the biomedical engineering field.
THE DISTRIBUTION OF THE ACTION CURRENTS PRODUCED BY HEART MUSCLE AND OTHER EXCITABLE TISSUES IMMERSED IN EXTENSIVE CONDUCTING MEDIA
TLDR
Curves obtained by this method of leading from the surface of the mammalian auricle indicate that the electrical effects produced by the passage of the excitation wave along a single muscle fiber are nearly the same as those that would occur if the crest of this wave were immediately preceded by a source and followed by a sink.
Talking about bioelectrical potentials using rings of the mesenteric artery without glass micropipettes.
TLDR
An experimental approach is proposed to demonstrate the relationship between the equilibrium potential for K(+) and transmembrane electrical potential without glass micropipettes and it is demonstrated that the activity is able to improve students' comprehension regarding basic principles of bioelectricity.
Influence of the shape of intracellular potentials on the morphology of single-fiber extracellular potentials in human muscle fibers
TLDR
A novel piecewise SFAP model is proposed to achieve greater insight into the nature of declining portion of the negative phase and of the third phase of SFAP, and it was found that the SFAP third phase is essentially determined by the specific profile of the transition of the IAP falling phase toward the resting voltage.
Simulation of single muscle fibre action potentials
TLDR
The relationship between the conduction velocity and amplitude is analysed and it is concluded that, for a given fibre, the amplitude is inversely proportional to theConduction velocity, which agrees with the experimental data reported in the literature and with computationally fast and precise expressions developed.
Simple techniques suitable for student use to record action potentials from the frog heart.
  • S. Yoshida
  • Biology
    Advances in physiology education
  • 2001
TLDR
The techniques shown here provide a simple and convenient way to perform a variety of class experiments and provide opportunities for observing the effects of either changing ionic compositions of solutions or applying drugs.
A quantitative description of membrane current and its application to conduction and excitation in nerve.
TLDR
This article concludes a series of papers concerned with the flow of electric current through the surface membrane of a giant nerve fibre by putting them into mathematical form and showing that they will account for conduction and excitation in quantitative terms.
Teaching a master student how to model the electrical potentials produced by the muscle
In Electromyography studies, the motor unit is considered as the anatomical and functional unit responsible of the electrical activity related to the contraction of the skeletal muscle. This paper is
Electrophysiology of the undergraduate neuroscience student: a laboratory exercise in human electromyography.
  • R. C. Lennartz
  • Psychology, Education
    The American journal of physiology
  • 1999
A laboratory exercise is described in which students in a neuroscience, psychobiology, or similar laboratory course record the electromyogram (EMG) from themselves, using surface electrodes (placed
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