Electrochemical Tran mission

C:Depolarized

B:Repolarized

Presynaptic Neuron

Synaptic Cleft

Postsynaptic Neuron

-70 mV -80 mV +40 mV

A:Polarized

Axon-End Plate

Dendrite

Ca2+ PumpNa+/K+ PumpNa+ Pump

Re-Uptake Pump

Cholinesterase

Acetylcholine

Ligand Gated Ion Channel

Na+K+

Negative Protein

Passive Channels

Active Channels

Ca2+

Andrew Schr eder Jr.

-70 mV