52: The action potential and the synapse Quizellenjmchenry2019-06-14T00:27:52-04:00 Please sign up for the course before taking this quiz. What crosses the synaptic cleft?1 cytokines calcium ions neurotransmitters the action potential The action potential can travel up and down, back and forth, along the neuron.1 True False The action potential can cross the synaptic cleft.1 True False What does the Na/K pump do?1 Makes sure the action potential only goes one way. Restores the action potential. Maintains the resting potenial. Gets rid of unwanted sodium and potassium ions. What is the ration of Na to K ions pumped by the Na/K pump?1 1:1 3:2 100:1 6:1 When the axon is resting, which is more abundant inside the membrane?1 K Na Ca When the axon is resting, which is more abundant inside the membrane?1 Ca Na K Where does the action potential start?1 Schwann cells hillock axon terminals 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 either, depending on situation sodium channels potassium channels 51: Nervous tissue of the CNS 53: Muscle fibers and the neuromuscular junction Back to: 52: The action potential and the synapse
Please sign up for the course before taking this quiz. What crosses the synaptic cleft?1 cytokines calcium ions neurotransmitters the action potential The action potential can travel up and down, back and forth, along the neuron.1 True False The action potential can cross the synaptic cleft.1 True False What does the Na/K pump do?1 Makes sure the action potential only goes one way. Restores the action potential. Maintains the resting potenial. Gets rid of unwanted sodium and potassium ions. What is the ration of Na to K ions pumped by the Na/K pump?1 1:1 3:2 100:1 6:1 When the axon is resting, which is more abundant inside the membrane?1 K Na Ca When the axon is resting, which is more abundant inside the membrane?1 Ca Na K Where does the action potential start?1 Schwann cells hillock axon terminals 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 either, depending on situation sodium channels potassium channels
