An action potential is a very rapid change in membrane potential that occurs when a nerve cell membrane is stimulated. Specifically, the membrane potential goes from the resting potential (typically -70 mV) to some positive value (typically about +30 mV) in a very short period of time (just a few milliseconds).n action potential is a very rapid change in membrane potential that occurs when a nerve cell membrane is stimulated. Specifically, the membrane potential goes from the resting potential (typically -70 mV) to some positive value (typically about +30 mV) in a very short period of time (just a few milliseconds).
Definition of astute - having or showing an ability to accurately assess situations or people and turn this to one's advantage Definition of astute - having or showing an ability to accurately assess situations or people and turn this to one's advantage
But the extent of the damage to Astute, which ran aground at 8am as she turned at the entrance to Loch Alsh after the personnel transfer, is not yet clear. There will be greater fears due to speculation that a Russian nuclear submarine is lurking off the coast of Britain and was thought to be tracking a Navy vessel.