- Lateral Giant Interneuron
The lateral giant neuron (LG) is an
interneuronin the abdominal nervecord of crayfish. It is part of the system that controls a special kind of escape reflexof crayfish.
sensory hairs of the tail fan of crayfish are stimulated, the LG activates the motor neurons that control flexion movements of the abdomenin the way that propels the crayfish away from the source of the stimulation. The LG bypasses the main neural system that controls locomotion, thus shortening the reaction time.
The lateral giant connection to motor giant fast flexor neurons was the first known example of an
electrical synapse(Furshpan & Potter, 1957).
Edwards DH, Heitler WJ, Krasne FB. 1999. Fifty years of a command neuron: the neurobiology of escape behavior in the crayfish. "Trends in Neurosciences" 22: 153-160.
Furshpan EJ, Potter DD. 1957. Mechanism of nerve-impulse transmission at a crayfish synapse. "Nature" 180: 342-343. http://www.nature.com/nature/journal/v180/n4581/abs/180342a0.html
Wine JJ. 1984. The structural basis of an innate behavioural pattern. "The Journal of Experimental Biology" 112: 283-319.
Squid giant axon
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