Why Can’t Action Potentials Go Backwards? The refractory period prevents the action potential from travelling backwards. There are two types of refractory periods, the absolute refractory period and the relative refractory period. The absolute refractory period is when the membrane cannot generate another action potential, no matter how large the stimulus is. What happens if
What Is The Source Of Most Of The Input To The Left LGN? Question 2: What is the source of most of the input to the left LGN? Answer: The left LGN receives retinal information about the right visual field. Left LGN neurons receive synaptic input from the retinal ganglion cells in the nasal half
Can An Action Potential Travel In Both Directions Anterograde? Thus a wave of depolarization spreads from the point of initiation. If this were all there was to it, then the action potential would propagate in all directions along an axon. But action potentials move in one direction. Are action potentials bidirectional? Stimulation in ectopic sites