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