Alex's Lecture 6 Study Guide.pdf - 1 Otto Loewi and his...

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1. Otto Loewi and his experiments with frog hearts showed what about nerve signals (what are they due to)? 2. Experiments with 4-AP revealed a _____________ between the number of quanta released and the number of vesicles fusing. a. Negative correlation b. One-to-one relationship c. noncausal relationship 3. What is a difference between an end plate potential and a miniature end plate potential? 4. True or false: the synapse is comprised of the presynaptic neuron, the space between, and the postsynaptic neuron. 5. What is a main difference between Ca 2+ channels and Na + channels? What does this difference permit (think flow of ions)? 6. Name the four stages of NT function. 7. The action potential is dependent on sodium influx. Which ion is neurotransmitter release dependent on and what happens when you block the flow of that ion? 8. How does the reversal potential of the ACh receptor at the neuromuscular junction show that these channels are permeable to more than one ion?
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