Which type of cell produces the myelin covering around larger axons in the brain and spinal cord?
A) oligodendroglia
B) astrocyte
C) microglia
D) dendrites
A
Explanation: A) Correct!
B) Astrocytes form the blood-brain barrier. They do not produce myelin.
C) Microglia do not produce myelin.
D) Dendrites are not cells, just branches at one end of a nerve cell.
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