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Questions and Answers
What is the main function of dendrites in a neuron?
What is the main function of dendrites in a neuron?
- Serve as initial processing sites for synaptic signals
- Transmit stimulus to a gland, muscle, organ, or other neuron
- Receive signals from other cells (correct)
- Contain myelin sheath for insulation
What is the purpose of the myelin sheath around axons?
What is the purpose of the myelin sheath around axons?
- Facilitating action potential
- Initial processing of synaptic signals
- Permitting entry of calcium ions
- Insulation (correct)
What initiates an action potential in a neuron?
What initiates an action potential in a neuron?
- Depolarization of the cell membrane
- Influx of Na+ ions
- Disturbance to the cell membrane (correct)
- Influx of K+ ions
What leads to depolarization of the cell membrane during an action potential?
What leads to depolarization of the cell membrane during an action potential?
Where does the release of neurotransmitters occur in a neuron?
Where does the release of neurotransmitters occur in a neuron?
What facilitates the action potential in the next cell after neurotransmitters are released in the synaptic cleft?
What facilitates the action potential in the next cell after neurotransmitters are released in the synaptic cleft?
What is the primary function of the dendrites in a neuron?
What is the primary function of the dendrites in a neuron?
Which of the following types of neurons has a single process that bifurcates close to the cell body?
Which of the following types of neurons has a single process that bifurcates close to the cell body?
Where are the Nissl bodies primarily found within a neuron?
Where are the Nissl bodies primarily found within a neuron?
Which of the following is the primary component of the cytoskeleton in neurons?
Which of the following is the primary component of the cytoskeleton in neurons?
What is the primary function of the cell body (perikaryon) in a neuron?
What is the primary function of the cell body (perikaryon) in a neuron?
Which type of neuron lacks a true axon?
Which type of neuron lacks a true axon?
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