Q. The action potential of a neuron: (Solved)
1. is initiated by efflux of Na+
2. is terminated by efflux of K+
3. declines in amplitude as it moves along the axon
4. results in transient reversal of the concentration gradient of Na+ across the cell membrane
5. is not associated with any net movement of Na+ or K+ across the cell membrane
- b. is terminated by efflux of K+