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Science 3 February 1984:
Vol. 223. no. 4635, pp. 500 - 503
DOI: 10.1126/science.6691161
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Articles

Science, Vol 223, Issue 4635, 500-503
Copyright © 1984 by American Association for the Advancement of Science

articles

The edge cell, a possible intraspinal mechanoreceptor

S Grillner, T Williams, and PA Lagerback

In the lateral edge of the "white matter" in the lamprey spinal cord, there is a group of nerve cells referred to as edge cells. The results of a combined physiological, light microscopical, and electron microscopical study suggest that these cells serve as intraspinal mechanoreceptors. Edge cells are depolarized on stretch of the lateral margin of the spinal cord, and they have nestlike ramifications in this region oriented in a rostrocaudal plane. These cells exhibit a close structural similarity with the crayfish stretch receptor.


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