The type of glial cells that began to restore the barrier between Brandon's brain and blood is the astrocytes.
What are glial cells?
The glial cells are does cells that are non-neuronal cells found within the nervous system which helps to provides physical and metabolic support to neurons.
An example of glial cells is the astrocytes which are the building blocks of the brain neurotransmitters that aids in brain injury recovery.
Learn more about astrocytes here:
https://brainly.com/question/9241889
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