Factors that affect impulse transmission speed in nerves

Factors that affect nerve conduction velocity

1. Axon diameter: Impulses move faster in an axon with larger diameter.

2. Myelination and saltatory conduction: Myelination speeds up conduction.

4. Temperature: Homoiotherms with steady body temperature have faster impulse propagation than poikilotherms which have fluctuating body temperature.
5. Resting membrane potential: Effect of RMP changes on conduction velocity is quite variable. Usually, any change in the RMP in either direction (hyper polarization or depolarization) slows down the conduction velocity.

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