A. Sequencing: Put the following steps in order. 1 being the first and 10 last steps. Stimulation of a Neuron Сa+ causes vesicles to release Na+ diffuses into cell neurotransmitter. Impulse reaches terminal, causing Ca+ to be released. K+ diffuses out of the cell Stimulus activates neuron at the dendrite Action potential is created. sensory receptors. Neurotransmitter binds to receptors of Stimulus changes permeability of next neuron. neuron. Events and impulse continue to spread Na+/K+ pump restores resting position of ions. across the membrane.

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