strong ▁( cr ick eter ) ▁( born ▁ 1 9 6 5 ), ▁Bah am ian ▁cr ick eter ▁ ▁Gary ▁Arm strong ▁( rug by ) ▁( born ▁ 1 9 6 6 ), ▁Scottish ▁rugby ▁union ▁player <0x0A> </s> ▁Elect ro phys i ology ▁( from ▁Greek ▁, ▁ ē le ktr on , ▁" am ber " ▁[ see ▁the ▁et ym ology ▁of ▁" elect ron "]; ▁, ▁phys is , ▁" n ature , ▁origin "; ▁and ▁, ▁- log ia ) ▁is ▁the ▁branch ▁of ▁phys i ology ▁that ▁studies ▁the ▁elect rical ▁properties ▁of ▁bi ological ▁cells ▁and ▁t issues . ▁ ▁It ▁involves ▁measurements ▁of ▁voltage ▁changes ▁or ▁electric ▁current ▁or ▁manip ulations ▁on ▁a ▁wide ▁variety ▁of ▁scales ▁from ▁single ▁ion ▁channel ▁prote ins ▁to ▁whole ▁org ans ▁like ▁the ▁heart . ▁ ▁In ▁neu ros cience , ▁it ▁includes ▁measurements ▁of ▁the ▁elect rical ▁activity ▁of ▁neur ons , ▁and , ▁in ▁particular , ▁action ▁potential ▁activity . ▁Record ings ▁of ▁large - scale ▁electric ▁signals ▁from ▁the ▁nerv ous ▁system , ▁such ▁as ▁electro ence phal ography , ▁may ▁also ▁be ▁referred ▁to ▁as ▁electro phys i ological ▁record ings . ▁They ▁are ▁useful ▁for ▁elect rod i agn osis ▁and ▁monitoring . ▁ ▁Definition ▁and ▁scope ▁ ▁Class ical ▁electro phys i ological ▁techniques ▁ ▁Princi ple ▁and ▁mechan isms ▁Elect ro phys i ology ▁is ▁the ▁branch ▁of ▁phys i ology ▁that ▁per tain s ▁broad ly ▁to ▁the