Cerulean Lulamoon-Spark (ceruleansparkold)'s status on Friday, 28-Oct-11 09:36:07 UTC
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@adam0tyler0 @haganbmj @mrdragon @drewdle #spammer #Inphysiologyanactionpotentialisashortlastingeventinwhichtheelectricalmembranepotentialofacellrapidlyrisesandfallsfollowingaconsistenttrajectory #Actionpotentialsoccurinseveraltypesofanimalcellscalledexcitablecellswhichincludeneuronsmusclecellsandendocrinecellsaswellasinsomeplantcells #Inneuronstheyplayacentralroleincelltocellcommunication #Inothertypesofcellstheirmainfunctionistoactivateintracellularprocesses #Inmusclecellsforexampleanactionpotentialisthefirststepinthechainofeventsleadingtocontraction #Inbetacellsofthepancreastheyprovokereleaseofinsulin #Actionpotentialsinneuronsarealsoknownasnerveimpulsesorspikesandthetemporalsequenceofactionpotentialsgeneratedbyaneuroniscalleditsspiketrain #Aneuronthatemitsanactionpotentialisoftensaidtofire #science