PROPERTIES OF THE CONNECTIVE TISSUE SHEATH OF THE COCKROACH ABDOMINAL NERVE CORD ,
Open Access
- 1 October 1956
- journal article
- research article
- Published by University of Chicago Press in The Biological Bulletin
- Vol. 111 (2) , 278-286
- https://doi.org/10.2307/1539019
Abstract
A method is described for removing portions of the connective tissue sheath which invests the nervous system of the cockroach, making possible studies of sheath function and of basic physiological properties of the insect neuron. The sheath delays conduction block in the presence of excess K ions, prevents conduction block in physiological saline deficient in Na ions and prevents block of synaptic transmission by acetylcholine, apparently by restricting diffusion between the interior of the cord and the surrounding fluid. The functional sheath consists of an inner continuous squamous epithelial layer and an outer homogenous layer.This publication has 8 references indexed in Scilit:
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