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Updated: Aug 11, 2026

Physiological Recordings of High and Low Output NMJs on the Crayfish Leg Extensor Muscle
10:00

Physiological Recordings of High and Low Output NMJs on the Crayfish Leg Extensor Muscle

Published on: November 17, 2010

Rapid pressure changes and surface displacements in the squid giant axon associated with production of action

I Tasaki, K Iwasa

    The Japanese Journal of Physiology
    |January 1, 1982
    PubMed

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    Overview
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    Every cell in the body maintains a membrane potential due to an uneven distribution of positive and negative charges across its plasma membrane. The membrane potential is measured in millivolts and quantifies the difference in charge across the membrane.
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    Action Potential01:14

    Action Potential

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    The action potential is a complex electrical event that occurs in excitable cells, such as neurons and muscle cells. It consists of several distinct phases, each with specific characteristics.
    Resting Phase:
    In this phase, the cell's membrane is at its resting potential, typically around -70 millivolts (mV) for neurons. Inside the cell, there is a higher concentration of potassium ions (K+) and a lower concentration of sodium ions (Na+). Voltage-gated sodium channels are closed, and...
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    Propagation of Action Potentials

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