Identities Problems: For 2530, prove that the given equation is an identity.

Exam2StudySmartQuestions 4/9/1611:51PM BiologicalFoundations o Whenaneuronsendsasignal,itissendinganelectricalimpulsedownitsbody.Itstart inthedendrites,wheretheactionpotentialfromanotherneuronisreceived.The neurotransmittersfromthepresynapticneuroncausesligandgatedsodiumchannelto open.Thisinfluxofsodiumthrowsoffthethreshold,whichis-70mV.Ifthemembrane potentialreachesthreshold,moreandmoresodiumchannelswillopenandtheneuron willdepolarize,sendingdowntheactionpotential.Astheactionpotentialtravelsdown theaxon,moresodiumchannelsopen.Aftertheithastraveledthelengthoftheaxon, sodiumchannelsfarthernorthonthecellbegintocloseandpotassiumchannelsbegin toopen,allowingpotassiumtoflowout.Theneuronovercompensatesandendsupin whatiscalledtheabsoluterefractoryperiod.Duringthistime,therearemoresodium ionswithinthecellandmorepotassiumionsoutsideofthecell.Asthesodium potassiumpumpsbalanceouttheions(2sodiumin,3potassiumout),theneurongoes throughtherelativerefractoryperiod,andeventuallyreachesinrestingmembrane potentialagain. o Axon:lengthoftheneuronwheretheactionpotentialtravelstoreachtheterminalend ofthecell;AxonHillock:connectionbetweenthesomaandtheaxon;Dendrites: Receivesmessagesfromotherneuronsthroughneurotransm