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
Astute \As*tute\, a. [L. astutus, fr. astus craft, cunning; perh. cognate with E. acute.] Critically discerning; sagacious; shrewd; subtle; crafty. [1913 Webster] Syn: Keen; eagle-eyed; penetrating; skilled; discriminating; cunning; sagacious; subtle; wily; crafty.