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Questions and Answers
What is the main functional cell of the nervous system?
What is the main functional cell of the nervous system?
- Dendrite
- Axon
- Neuron (correct)
- Glial cell
What is the name of the electrical signal in the axon that results when the membrane potential reaches threshold?
What is the name of the electrical signal in the axon that results when the membrane potential reaches threshold?
- Graded potential
- Action potential (correct)
- Threshold potential
- Resting potential
What are the gaps in the myelin sheath that help with the transmission of the nerve impulse called?
What are the gaps in the myelin sheath that help with the transmission of the nerve impulse called?
- Nodes of Ranvier (correct)
- Action potentials
- Graded potentials
- Synapses
Which type of nerves carry impulses only toward the central nervous system?
Which type of nerves carry impulses only toward the central nervous system?
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What causes the resting membrane potential in a non-stimulated nerve cell?
What causes the resting membrane potential in a non-stimulated nerve cell?
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What is the function of the myelin sheath in the nervous system?
What is the function of the myelin sheath in the nervous system?
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Which part of the neuron receives chemical messages from other neurons?
Which part of the neuron receives chemical messages from other neurons?
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What is the global function of the nervous system?
What is the global function of the nervous system?
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Which part of the neuron sustains all processes within the cell body?
Which part of the neuron sustains all processes within the cell body?
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What is the role of the axon in the neuron?
What is the role of the axon in the neuron?
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