A toxin that blocks the release of a neurotransmitter would most likely: prevent action potentials in the pre-synaptic cell stop action potentials by blocking Na channels effect the post-synaptic cell No answer text provided. block oxygen from entering the cell
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Step 1: A toxin that blocks the release of a neurotransmitter will prevent the neurotransmitter from being released from the pre-synaptic cell. Show more…
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When inhibitory neurotransmitters bind to their receptors in the post-synaptic cell, positively charged ions flow through the ligand-gated ion channel increasing the chance that an action potential can be fired in the post-synaptic cell negatively charged ions flow through the ligand-gated ion channel decreasing the chance that an action potential can be fired in the post-synaptic cell positively charged ions flow through the stress-gated ion channel increasing the chance that an action potential can be fired in the post-synaptic cell synaptic vesicles fuse with the plasma membrane releasing more neurotransmitter no response is typically detected
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If the chemically-gated sodium channels in the postsynaptic membrane were completely blocked, the presynaptic membrane would be unable to reach threshold. release of neurotransmitter would stop smaller action potentials would result synaptic transmission would fail.
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In a sending neuron, when an action potential reaches an axon terminal, the impulse triggers the release of chemical messengers called ______________.
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