52: The action potential and the synapse Quizellenjmchenry2019-06-14T00:27:52-04:00 Please sign up for the course before taking this quiz. An influx of sodium ions into the axon is what generates the action potenial.1 True False The action potential can travel up and down, back and forth, along the neuron.1 True False What crosses the synaptic cleft?1 calcium ions neurotransmitters the action potential cytokines When the axon is resting, which is more abundant inside the membrane?1 Ca K Na Where does the action potential start?1 Schwann cells hillock axon terminals To what gadget do neurotransmitters stick after they cross the gap?1 sodium channels either, depending on situation potassium channels 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 6:1 3:2 100:1 1:1 What does the Na/K pump do?1 Gets rid of unwanted sodium and potassium ions. Makes sure the action potential only goes one way. Maintains the resting potenial. Restores the action potential. 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
Please sign up for the course before taking this quiz. An influx of sodium ions into the axon is what generates the action potenial.1 True False The action potential can travel up and down, back and forth, along the neuron.1 True False What crosses the synaptic cleft?1 calcium ions neurotransmitters the action potential cytokines When the axon is resting, which is more abundant inside the membrane?1 Ca K Na Where does the action potential start?1 Schwann cells hillock axon terminals To what gadget do neurotransmitters stick after they cross the gap?1 sodium channels either, depending on situation potassium channels 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 6:1 3:2 100:1 1:1 What does the Na/K pump do?1 Gets rid of unwanted sodium and potassium ions. Makes sure the action potential only goes one way. Maintains the resting potenial. Restores the action potential. When the axon is resting, which is more abundant inside the membrane?1 Ca K Na
