Two cases have been described, that of the marine planarian Bdelloura and that of the starfish Asterias forbesii, in which strychnine reverses reciprocal inhibition. These facts indicate that the nervous systems of these invertebrates function in a manner similar to those of the earthworm and vertebrates. Moreover, it would seem that strychnine acts upon some chemical component of the neuron which is always present in synaptic structures but which also occurs in the simpler neurons of lower forms. The fact that strychnine is without this characteristic effect on such forms as medusa and sea anemone, indicates that the nervous systems of the starfish and planarian have chemical affinities with the vertebrates which the cœlenterates do not possess.
Article| September 20 1918
REVERSAL OF REACTION BY MEANS OF STRYCHNINE IN PLANARIANS AND STARFISH
A. R. Moore
From the Physiological Laboratory of Rutgers College, New Brunswick, N. J.
Received: June 20 1918
Online Issn: 1540-7748
Print Issn: 0022-1295
Copyright, 1918, by The Rockefeller Institute for Medical Research
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A. R. Moore; REVERSAL OF REACTION BY MEANS OF STRYCHNINE IN PLANARIANS AND STARFISH . J Gen Physiol 20 September 1918; 1 (1): 97–100. doi: https://doi.org/10.1085/jgp.1.1.97
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