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Neuron Structure and Classification

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Questions and Answers

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?

Facilitating action potential

Initial processing of synaptic signals

Permitting entry of calcium ions

Insulation (correct)

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?

Opening of Na+ channels Signup and view all the answers

Where does the release of neurotransmitters occur in a neuron?

Synaptic cleft Signup and view all the answers

What facilitates the action potential in the next cell after neurotransmitters are released in the synaptic cleft?

Influx of Na+ ions Signup and view all the answers

What is the primary function of the dendrites in a neuron?

To receive stimuli from other neurons Signup and view all the answers

Which of the following types of neurons has a single process that bifurcates close to the cell body?

Unipolar neurons Signup and view all the answers

Where are the Nissl bodies primarily found within a neuron?

In the cell body Signup and view all the answers

Which of the following is the primary component of the cytoskeleton in neurons?

All of the above Signup and view all the answers

What is the primary function of the cell body (perikaryon) in a neuron?

To synthesize proteins and regulate the neuron's metabolism Signup and view all the answers

Which type of neuron lacks a true axon?

Anaxonic neurons Signup and view all the answers

Neuron Structure and Classification

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Podcast

Questions and Answers

What is the main function of dendrites in a neuron?

What is the purpose of the myelin sheath around axons?

What initiates an action potential in a neuron?

What leads to depolarization of the cell membrane during an action potential?

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 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?

Where are the Nissl bodies primarily found within a neuron?

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?

Which type of neuron lacks a true axon?

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