52: The action potential and the synapse Quizellenjmchenry2021-10-01T23:30:39-04:00 Please sign up for the course before taking this quiz. What does the Na/K pump do?1 Maintains the resting potenial. Restores the action potential. Makes sure the action potential only goes one way. Gets rid of unwanted sodium and potassium ions. The action potential can cross the synaptic cleft.1 True False An influx of sodium ions into the axon is what generates the action potenial.1 True False To what gadget do neurotransmitters stick after they cross the gap?1 potassium channels sodium channels either, depending on situation Where does the action potential start?1 axon terminals hillock Schwann cells When the axon is resting, which is more abundant inside the membrane?1 Na K Ca When the axon is resting, which is more abundant inside the membrane?1 Na Ca K The action potential can travel up and down, back and forth, along the neuron.1 True False What crosses the synaptic cleft?1 cytokines the action potential neurotransmitters calcium ions What is the ration of Na to K ions pumped by the Na/K pump?1 100:1 1:1 6:1 3:2 51: Nervous tissue of the CNS 53: Muscle fibers and the neuromuscular junction Back to: 52: The action potential and the synapse
