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Updated: Oct 14, 2026

Membrane Potentials, Synaptic Responses, Neuronal Circuitry, Neuromodulation and Muscle Histology Using the Crayfish: Student Laboratory Exercises
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Membrane Potentials, Synaptic Responses, Neuronal Circuitry, Neuromodulation and Muscle Histology Using the Crayfish: Student Laboratory Exercises

Published on: January 18, 2011

电源和鱼神经细胞体中的高特异性抵抗

D O Carpenter

    Science (New York, N.Y.)
    |March 30, 1973
    PubMed
    概括

    一个电源会影响神经元的休息潜力,在施加斯特罗芬提丁后,温度效应会消失. 这种产生的潜力和更高的膜电阻是特定于 soma,而不是轴突.

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    相关概念视频

    Action Potentials01:41

    Action Potentials

    Overview
    The Resting Membrane Potential01:21

    The Resting Membrane Potential

    Overview
    Resting Membrane Potential01:24

    Resting Membrane Potential

    The relative difference in electrical charge, or voltage, between the inside and the outside of a cell membrane, is called the membrane potential. It is generated by differences in permeability of the membrane to various ions and the concentrations of these ions across the membrane.
    The Inside of a Neuron is More Negative
    The membrane potential of a cell can be measured by inserting a microelectrode into a cell and comparing the charge to a reference electrode in the extracellular fluid. The...
    Resting Potential Decay01:15

    Resting Potential Decay

    The resting membrane potential of a neuron (-70mV) is sustained due to the selective ion permeability of the membrane. At the resting potential, the membrane is slightly permeable to ions like sodium (Na+) and chloride (Cl−) and highly permeable to potassium ions (K+). Differences in the ions' concentration inside the cell compared to the outside are maintained by membrane transport proteins like channels and pumps.
    At rest, the K+ is the main ion that moves across the membrane through...
    Action Potential01:14

    Action Potential

    Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
    Membrane potential in neurons
    Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...
    Action Potential01:14

    Action Potential

    Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
    Membrane potential in neurons
    Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...