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Questions and Answers
Which types of neurons are found in the cochlear and vestibular ganglia?
Which type of neuron is characterised by the presence of only one axon and one dendrite?
Where are nerve cell bodies found in the Central Nervous System?
Which of the following neuron types controls effector organs such as muscles and glands?
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What is the diameter of some of the very large neuron cell bodies?
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What type of neurons are found in the spinal and most cranial ganglia?
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Study Notes
Neuron Classification by Shape
- Cell bodies can be spherical, ovoid, or angular, with some being very large (up to 150 μm in diameter)
Neuron Classification by Axon
- Multipolar neurons are the most common type, found in various parts of the body, including Purkinje cells and pyramidal cells
- Bipolar neurons are found in specific areas, such as the cochlear and vestibular ganglia, retina, and olfactory mucosa
- Pseudounipolar neurons are found in spinal and most cranial ganglia
- Unipolar neurons are found in the spinal cord and anterior column
Neuron Classification by Function
- Motor neurons (afferent) control effector organs, such as muscles and glands
- Sensory neurons (efferent) are involved in receiving sensory stimuli from the environment and within the body
- Interneurons are found in the central nervous system, including the retina
Neuron Distribution
- In the Central Nervous System, nerve cell bodies are found only in the gray matter
- The white matter contains neuronal processes
- In the Peripheral Nervous System, cell bodies are found in ganglia and olfactory mucosa
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Description
This quiz covers the classification of neurons based on their shape and axon type, including multipolar, bipolar, and pseudounipolar neurons.
