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the axon
the axon
During a nerve impulse…….
the axon
During a nerve impulse…….
Na+
moves in
the axon
During a nerve impulse…….
Na+
moves in
K+
moves out
the axon
At rest…….
more negative
the axon
At rest…….
more negative
less negative
the axon
During a nerve impulse…….
positive
negative
…for a brief period of time only!
the axon
During the resting state…….
Lots of Na+ out here
the axon
During the resting state…….
Lots of Na+ out here
but not much K+
the axon
During the resting state…….
Lots of Na+ out here
but not much K+
Lots of K+ in herebut not much Na+
the axon
During the resting state…….
Lots of Na+ out here
but not much K+
Lots of K+ in herebut not much Na+
Lots of Cl- out here
the axon
During the resting state…….
Lots of Na+ out here
but not much K+
Lots of K+ in herebut not much Na+
Lots of Cl- out here
Not much Cl- in here
the axon
During the resting state…….
Lots of Na+ out here
but not much K+
Lots of K+ in herebut not much Na+
Lots of Cl- out here
Not much Cl- in hereLots of negative organic ions here
the axon
During the resting state…….
Lots of Na+ out here
but not much K+
Lots of K+ in herebut not much Na+
Lots of Cl- out here
Not much Cl- in hereLots of negative organic ions here
NO negative organic ions here!
