Exner first showed, many years ago, that the nerve impulse travels through the spinal ganglion at the same speed as along the other parts of the nerve trunk - that is, that it suffers no delay in transit through the perikarya of the afferent rootneurons.
A single long axon carries the nerve impulse away from the cell body.
The correct balance of electrolytes is crucial to many body functions, including muscle contraction and nerve impulse transmission.
Succinimides (ethosuximide, methsuximide, phensuximide) elevate the seizure threshold and make it harder for a nerve impulse to spread from one nerve to another.
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