52: The action potential and the synapse Quizellenj2022-11-16T23:56:13-05:00 Please sign up for the course before taking this quiz. 1. The action potential can travel up and down, back and forth, along the neuron.1 True False 2. To what gadget do neurotransmitters stick after they cross the gap?1 potassium channels either, depending on situation sodium channels 3. What crosses the synaptic cleft?1 cytokines calcium ions the action potential neurotransmitters 4. When the axon is resting, which is more abundant inside the membrane?1 Na K Ca 5. What does the Na/K pump do?1 Restores the action potential. Maintains the resting potenial. Gets rid of unwanted sodium and potassium ions. Makes sure the action potential only goes one way. 6. What is the ration of Na to K ions pumped by the Na/K pump?1 100:1 6:1 3:2 1:1 7. Where does the action potential start?1 hillock Schwann cells axon terminals 8. An influx of sodium ions into the axon is what generates the action potential.1 True False 9. Saltatory conduction gets its name from the Latin word “saltare” meaning:1 jump salt fast slow synapse 10. The action potential can cross the synaptic cleft.1 True False 51: Nervous tissue of the CNS 53: Muscle fibers and the neuromuscular junction Back to: 52: The action potential and the synapse
