A nerve impulse travelling along a crustacean nerve was found to be accompanied by a small, rapid movement of the nerve surface. The movement was 10-20 nm in amplitude and was concurrent with a rise in the “swelling pressure” of the order of 5 mg/cm2 for a nerve bundle. Initiation of an action potential at the site of cathodal polarization was preceded by a small, slow mechanical change in the nerve fiber. Anodal polarization produced a large mechanical change of the opposite sign. Tetrodotoxin and procaine suppressed rapid mechanical changes. © 1980, PHYSIOLOGICAL SOCIETY OF JAPAN. All rights reserved.
CITATION STYLE
Tasaki, I., Iwasa, K., & Gibbons, R. C. (1980). Mechanical changes in crab nerve fibers during action potentials. The Japanese Journal of Physiology, 30(6), 897–905. https://doi.org/10.2170/jjphysiol.30.897
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