What are Astrocytes?
Astrocytes are a type of glial cell that are found in the brain & spinal cord of mammals, including humans.
They are star-shaped cells that play important roles in the functioning of the nervous system.
Astrocytes have several functions, including providing structural support for neurons & regulating the chemical environment around neurons.
They are also involved in the repair & regeneration of nervous tissue following injury or damage.
One of the key functions of astrocytes is to regulate the levels of ions & neurotransmitters in the extracellular fluid surrounding neurons.
They do this by taking up excess ions & neurotransmitters & releasing them back into the extracellular space when needed.
Astrocytes also play a role in regulating blood flow to the brain. They release chemicals that can cause blood vessels.
To dilate or constrict, thereby altering blood flow & oxygen supply to different areas of the brain.
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