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The Neurobiology of an Insect Brain$
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Malcolm Burrows

Print publication date: 1996

Print ISBN-13: 9780198523444

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780198523444.001.0001

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Controlling local movements of the legs Controlling local movements of the legs

Controlling local movements of the legs Controlling local movements of the legs

(p.254) 7 Controlling local movements of the legs
The Neurobiology of an Insect Brain

Malcolm Burrows

Oxford University Press

Local movements are defined as those caused by the contractions of the muscles in a single segment. The neural processing underlying these movements is carried out within a restricted part of the central nervous system. For the movements of a leg, the processing is performed in a single segmental ganglion so that the movements can still be produced when that ganglion is isolated from the rest of the central nervous system. These local movements of a single leg are therefore the result of local processing within a single ganglion. The movements of a leg rely for their execution on a combination of signals generated by the central nervous system, from sensory receptors on or in the appendage itself, and on signals from receptors on other parts of the body, most notably the head. To perform its devolved functions, a segmental ganglion processes the sensory signals from its appendages and makes the necessary adjustments to its motor output.

Keywords:   neural process, segmental ganglion, central nervous system, sensory receptors, sensory signals, appendage

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