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