Current-Voltage Relations in the Lobster Giant Axon Membrane Under Voltage Clamp Conditions
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Current-Voltage Relations in the Lobster Giant Axon Membrane Under Voltage Clamp Conditions
The sucrose-gap method introduced by Stämpfli provides a means for the application of a voltage clamp to the lobster giant axon, which responds to a variety of different experimental procedures in ways quite similar to those reported for the squid axon and frog node. This is particularly true for the behavior of the peak initial current. However, the steady state current shows some differences....
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Our understanding of the ionic exchanges taking place at the nerve membrane during electrical activity has been greatly increased by the application of the voltageclamp technique. This experimental method consists of the application of a stepwise change in potential to a given area of membrane and the simultaneous measurement of the current flow produced by this given potential gradient. The vo...
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,4BSTRACT TASAKI, I. AND C. S. SPYROPOULOS. Membrane conductance and currentvoltage relation in the squid axon under ‘voltage-clamp.’ &L-The conductance of the squid axon membrane under ‘voltage-clamp’ was measured by superposing a sinusoidal wave upon rectangular clamping voltage pulses. It was possible to determine the time course of the emf of the membrane under ‘voltage-clamp’ on a single p...
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The importance of ionic movements in excitable tissues has been emphasized by a number of recent experiments. On the one hand, there is the finding that the nervous impulse is associated with an inflow of sodium and an outflow of potassiuim (e.g. Rothenberg, 1950; Keynes & Lewis, 1951). On the other, there are experiments which show that the rate of rise and amplitude of the action potential ar...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1962
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.45.6.1217