Besides the main leg-nerve there is, in spiders, a ‘small leg-nerve’ which is mainly sensory. About 8 of the fibres arise from neurones which form a ganglion at the femurpatella joint and appear anatomically to be joint mechanoreceptors, but if so must supplement the lyriform organs. Cutting the small leg-nerve has no effect on the walking pattern nor on the detection of prey, which almost certainly depends on mechanoreception. The small leg-nerve contains one motor fibre which innervates the claw elevator. This muscle has a double innervation, a second fibre running in the main leg-nerve. There are interesting parallels between the small leg-nerve in spiders and Limulus.
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JOURNAL ARTICLE| 01 March 1960
The Small Leg-Nerve of Spiders and a Probable Mechanoreceptor
D. A. PARRY
King's College, From the Zoological Laboratory, Cambridge University Cambridge
Online Issn: 1477-9137
Print Issn: 0021-9533
Copyright © 1960 by the Company of Biologists Ltd.
J Cell Sci (1960) s3-101 (53): 1–8.
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D. A. PARRY; The Small Leg-Nerve of Spiders and a Probable Mechanoreceptor. J Cell Sci 1 March 1960; s3-101 (53): 1–8. doi: https://doi.org/10.1242/jcs.s3-101.53.1
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