Summary
Cobalt filling into spider legs reveals plurisegmental receptor endings and the plurisegmental origin of motor neurons. Motor neuron dendrites are organized into two domains, one interacting with plurisegmental receptors, the other arborizing within the lateral neuropil of the leg neuromere. The intersegmental organization of both motor and sensory elements supports behavioural studies demonstrating inhibitory connections between legs.
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References
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Babu, K.S., Barth, F.G. & Strausfeld, N.J. Intersegmental sensory tracts and contralateral motor neurons in the leg ganglia of the spider Cupiennius salei Keys. Cell Tissue Res. 241, 53–57 (1985). https://doi.org/10.1007/BF00214625
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DOI: https://doi.org/10.1007/BF00214625