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Science 11 February 1972:
Vol. 175. no. 4022, pp. 647 - 650
DOI: 10.1126/science.175.4022.647
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Articles

Crayfish Muscle Receptor Organ: Role in Regulation of Postural Flexion

Charles H. Page 1 and Phillip G. Sokolove 1

1 Department of Biological Sciences, Stanford University, Stanford, California 94305

Recordings were made from postural-control motor nerves with antagonistic functions in the crayfish abdomen through flexible suction electrodes. During unrestrained flexion of the abdomen, output from the tonic stretch receptor neuron of RM1,(SR1) is sufficient to drive an extensor motor unit in the same segment. However, this intrasegmental "resistance" reflex is normally blocked by an intersegmental reflex in which output from SR1's in caudal segments inhibits SR1 discharge in more anterior segments.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Functional organisation of anterior thoracic stretch receptors in the deep-sea isopod Bathynomus doederleini: behavioural, morphological and physiological studies.
M. Iwasaki, A. Ohata, Y. Okada, H. Sekiguchi, and A. Niida (2002)
J. Exp. Biol. 204, 3411-3423
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Science. ISSN 0036-8075 (print), 1095-9203 (online)