Examlex
Select the letter of the correct definition of the word. Summarize
Neurotransmitter
Neurotransmitters are chemical messengers that transmit signals across a chemical synapse from one neuron (nerve cell) to another target neuron, muscle cell, or gland cell.
Neuroglial Cell
Supportive cells in the nervous system that provide structural and metabolic support to neurons.
Schwann Cell
A type of glial cell that wraps around nerve fibers in the peripheral nervous system, forming the myelin sheath.
Perineurium
The connective tissue sheath enveloping bundles of nerve fibers within a nerve, providing protection and supporting blood vessels.
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