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
Someone who is astute is clever and has good judgment. The kid running around with a bucket stuck on his head? Not so astute. Astute (from Latin) is a formal and flattering adjective for someone with a good head on their shoulders. It differs from its synonym shrewd in placing less emphasis on hardheadedness than on sensitivity: we talk about a shrewd bargainer but an astute interpretation.