Neuron Communication and Neurochemistry Quiz

Play an AI-generated podcast conversation about this lesson

Which of the following is responsible for the regeneration of the action potential in the myelin sheath?

Glial cells

Sodium channels

Oligodendrocytes

Nodes of Ranvier (correct)

What is the main function of the sodium-potassium pumps in the neuron?

To maintain the myelin sheath

To regulate neurotransmitter release

To restore the resting potential (correct)

To generate the action potential

What happens during the refractory period of a neuron?

Neurons fire at a higher rate

Neurons fire in both directions

Neurons release more neurotransmitters

Neurons cannot fire (correct)

What is the role of the myelin sheath in neural communication?

To insulate neurons Signup and view all the answers

Which ions are important for the resting membrane potential of a neuron?

Sodium and potassium ions Signup and view all the answers

What is the main function of the voltage-gated ion channels in a neuron?

To generate the action potential Signup and view all the answers

What is the main cause of Multiple Sclerosis?

Degradation of oligodendrocytes Signup and view all the answers

Which cells are responsible for myelinating neurons in the central nervous system?

Oligodendrocytes Signup and view all the answers

What is the main function of myelin in neurons?

To protect and speed up electrical signals Signup and view all the answers

What is the role of EPSP in neuronal communication?

To increase the likelihood of generating an action potential Signup and view all the answers

What is the main way that neurons communicate with each other?

Chemical synapses Signup and view all the answers

What triggers the release of neurotransmitters into the synaptic cleft?

Increase in calcium Signup and view all the answers

How are unbound neurotransmitters cleared from the synapse?

Endocytosis or transporters Signup and view all the answers

Which cells release neurotransmitters through exocytosis upon action potential?

Presynaptic neurons Signup and view all the answers

What effect do serotonin reuptake inhibitors have on serotonin levels in the synaptic cleft?

Increase relative serotonin Signup and view all the answers

Neuron Communication and Neurochemistry Quiz

Podcast Beta

Questions and Answers