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Questions and Answers
What describes a unipolar neuron?
What describes a unipolar neuron?
- Found in the central nervous system
- Has one axon and two or more dendrites
- Has two processes extending from each end of the cell body
- Has one process emerging from the cell (correct)
What types of neurons are unipolar neurons?
What types of neurons are unipolar neurons?
Sensory neurons
Where are the cell bodies of unipolar neurons located?
Where are the cell bodies of unipolar neurons located?
- In the brain
- In ganglia (correct)
- In the spinal cord
- In the sensory organs
What characterizes a bipolar neuron?
What characterizes a bipolar neuron?
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In which special senses can bipolar neurons be found?
In which special senses can bipolar neurons be found?
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What is a characteristic of multipolar neurons?
What is a characteristic of multipolar neurons?
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Where are multipolar neurons predominantly found?
Where are multipolar neurons predominantly found?
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Study Notes
Unipolar Neurons
- Characterized by a single process emerging from the cell body.
- Primarily function as sensory neurons, transmitting sensory information.
- Dendrites collect sensory data, often directly from stimuli.
- Cell bodies located in ganglia outside the central nervous system.
Bipolar Neurons
- Possess two processes extending from opposite sides of the cell body: one axon and one dendrite.
- Associated with special senses:
- Olfactory epithelium for smell.
- Retina for visual processing.
- Inner ear for hearing and equilibrium.
Multipolar Neurons
- Contain one axon and multiple dendrites, allowing for complex connections.
- Represent the majority of neurons in the central nervous system (CNS).
- All motor neurons are classified as multipolar, facilitating motor control and response.
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