, Volume 8, Issue 3, pp 181–186 | Cite as

Action potential generation by turtle cortical neurons. Dendritic and somatic spikes

  • A. S. Pivovarov


Action potentials of neurons of the turtle general cortex and the pattern of their generation were studied by an intracellular recording method. Besides the complete action potential, the cells also generate partial spikes of varied amplitude which compose the complete action potential. The threshold of generation and the discrete amplitude of each partial spike are not strictly constant but they fluctuate gradually and spontaneously within certain limits without any change in membrane potential of the cell. Somatic and dendritic spikes are distinguished. The trigger zones of the latter are located at various distances from the soma. During orthodromic activation of cortical neurons dendritic spikes are generated consecutively and spread to the some electrotonically with a decrement. They are the immediate cause of generation of the somatic spike.


Membrane Potential Cortical Neuron Potential Generation Varied Amplitude Intracellular Recording 
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Copyright information

© Plenum Publishing Corporation 1977

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  • A. S. Pivovarov

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