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Questions and Answers
What is the primary function of the myelin sheath in neurons?
What is the primary function of the myelin sheath in neurons?
- To release neurotransmitters into the synaptic cleft
- To transmit electrical signals to the postsynaptic cell
- To regulate the resting potential of the neuron
- To insulate the axon from the surrounding environment (correct)
What is the maximum speed at which an action potential can travel along a myelinated axon?
What is the maximum speed at which an action potential can travel along a myelinated axon?
- 200 m/s
- 150 m/s (correct)
- 100 m/s
- 10 m/s
What is the primary mechanism of transmission at a synapse?
What is the primary mechanism of transmission at a synapse?
- Chemical signaling (correct)
- Mechanical signaling
- Electrical signaling
- Thermal signaling
What is the purpose of the synaptic cleft?
What is the purpose of the synaptic cleft?
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What is the term for the release of neurotransmitters from the presynaptic neuron?
What is the term for the release of neurotransmitters from the presynaptic neuron?
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What is the function of voltage-gated channels in myelinated axons?
What is the function of voltage-gated channels in myelinated axons?
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What is the primary function of the spinal cord?
What is the primary function of the spinal cord?
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What is the purpose of nodes in myelinated axons?
What is the purpose of nodes in myelinated axons?
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What is the term for the gap between the presynaptic neuron and the postsynaptic neuron?
What is the term for the gap between the presynaptic neuron and the postsynaptic neuron?
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What is the primary function of neurotransmitters?
What is the primary function of neurotransmitters?
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