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Types of Neurons
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Sensory (Afferent) Neurons
Transmit sensory information from receptors to the central nervous system; typically have long dendrites and shorter axons.
Motor (Efferent) Neurons
Carry signals from the central nervous system to muscles and glands; usually have long axons and shorter dendrites.
Interneurons
Connect neurons within the central nervous system and interpret, process, and coordinate information; typically found within the CNS.
Purkinje Cells
Located in the cerebellum; play a critical role in motor coordination and cognitive functions; characterized by a dense and elaborate dendritic tree.
Pyramidal Cells
Found in the cerebral cortex; involved in cognitive functioning, particularly in the transmission of information between different areas of the brain; identified by their pyramid-shaped cell body.
Unipolar Neurons
Have a single projection from the cell body that then splits into two axonal roots; predominantly found in sensory ganglia.
Bipolar Neurons
Have one axon and one dendrite; found in the sensory systems such as the retina of the eye and the olfactory system.
Multipolar Neurons
Have one axon and multiple dendrites; the most common type of neuron in the central nervous system.
Schwann Cells
Not neurons but glial cells that wrap around the axons of peripheral neurons forming the myelin sheath; aid in increasing the speed of neural transmission along the axon.
Mirror Neurons
Specialized neurons that fire both when an individual performs an action and when the individual observes the same action performed by another; involved in imitation and social cognition.
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