The Journal of General Physiology
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The Journal of General Physiology, Vol 3, 49-56, Copyright © 1920 by The Rockefeller University Press

ARTICLE

DYNAMICS OF NERVE CELLS

II. THE TEMPERATURE COEFFICIENTS OF CARBON DIOXIDE PRODUCTION BY THE HEART GANGLION OF LIMULUS POLYPHEMUS.



Walter E. Garrey 1

1 From the Physiological Laboratory of the Tulane University Medical School, New Orleans.

1. It is possible to determine by the colorimetric method the rate of production of carbon dioxide by the cardiac ganglion of Limulus.

2. Carbon dioxide formation in the cardiac ganglion was found to run parallel to the rate of heart beat for different temperatures.

3. The conclusion seems justified that the rate of cardiac rhythm of Limulus depends upon a chemical reaction in the nerve cells of the cardiac ganglion and that this reaction is associated with the production of carbon dioxide since the rate of beat and the rate of CO2 production are similarly affected by changes in temperature.

Submitted on July 24, 1920


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