Forces in the Nervous System Sodium Potassium Pump Mechanism in the Transmission of a Nerve ImpulseKey Words nerve conduction force electricity electric force positive force negative force sodium pump Na pump Patassium pump K+ pump diffusion conduction of impulses 72045b04.800Ashley Davidoff MD TheCommonVein.net Synaptic Cleft Requiring Chemical Transmitters eg Acetylcholine to Transmit Impulse Across Nerve JunctionsKey Words mitochondria transmitter vesicles presynaptic terminal post synaptic terminal soma of neuron synaptic cleft acetyl choline norepinephrine dopamine serotonin forces chemical energy function principles72046.800Ashley Davidoff MD TheCommonVein.net