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
Synonyms: shrewd, sagacious, astute, perspicacious These adjectives mean having or showing keen awareness, sound judgment, and often resourcefulness, especially in practical matters. Shrewd suggests a sharp intelligence, hardheadedness, and often an intuitive grasp of practical considerations: He was too shrewd to go along with them upon a road which could lead only to their overthrow (J.A. Froude).