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Insect Morphology and SystematicsMechanism of impulse conductionInsect Morphology and SystematicsMechanism of impulse conduction
Impulses are conducted by the neurones by two means.
A. Axonic conduction:
Ionic composition varies between inside and outside of axon resulting in
excitable conditions, which leads to impulse conduction as electrical response.
B. Synaptic conduction:
Neuro chemical transmitters are involved in the impulse conduction
through the synaptic gap. Neuro transmitters and the type of reactions helping in the impulse
conduction is as follows.
Acetyl CO-A + Choline (choline acetylase )
Acetyl choline
Acetyl choline + Water (Acetyl choline esterase )
Choline + Acetic acid
NERVOUS SYSTEM
i.
Central nervous system (CNS)
ii.
Visceral nervous system (VNS)
iii.
Peripheral nervous system (PNS)
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