Propagation Of Action Potentials Flashcards
Two types of propagation
Continuous conduction and saltatory conduction
What is propagation
An action potential keeps its strength as it spreads along the membrane
Continuous conduction locations
Unmyelinated axons + muscle fibers
Continuous conduction speed
Slower
Continuous conduction required energy
More
Saltatory conduction locations
Myelinated axons
Saltatory conduction speed
Faster
Saltatory conduction required energy
Less
Three factors that affect the speed of propagation
Amount of myelination, axon diameter, temperature.
How does the amount of myelination affect the action potentials
Propagates faster along myelinated axons
How does axon diameter affect action potential
Propagate faster along larger diameter axons
How does temperature affect action potential.
Propagates slower when cooled