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What are the three types of polar neurons?
unipolar, bipolar, and multipolar
WHat are the structural characteristics of a multipolar neuron?
cell body with one axon and multiple dendrites
What are the structural characteristics of a bipolar neuron?
cell body with one axon and one dendrite
What are the structural characteristics of a unipolar neuron?
cell body with a single process that divides into two branches and functions as an axon
Where are multipolar neurons located?
in the brain and spinal cord
Where are bipolar neurons located?
in the receptor parts of the eyes, nose, and ears (rare)
Where are unipolar neurons located?
most sensory neurons
What are the names of the three functional neurons?
Sensory (afferent) Neuron, interneuron, motor (efferent) neuron
What are the functional characteristics of a sensory neuron?
conducts impulses from receptors in peripheral body parts into the brain/spinal cord
What are the functional characteristics of an interneuron?
transmits impulses between neurons in the brain and the spinal cord
What are the functional characteristics of a motor neuron?
conducts impulses from the brain or spinal cord out to muscles or glands
What structure does a sensory neuron have?
Most unipolar, some bipolar
What structure does an interneuron have?
Multipolar
What structure does a motor neuron have?
Multipolar
What are the four neuroglia located in the CNS?
astrocytes, microglia, oligodendrocytes, ependyma
What are the two neuroglia located in the PNS? (Bonus)
Schwann cells, satellite cells
