In astrogliosis, astrocytes form a. cluster all around the \(\mathrm{CNS}\) b. bushy network surrounding the injury site c. all are true

Astrogliosis is a process where astrocytes, a type of glial cell in the CNS, respond to an injury or damage. Astrocytes undergo changes in their morphology, function, and gene expression to facilitate CNS repair and maintain CNS homeostasis after an injury.

Now, we will go through each option to find the correct statement about astrocytes' response during astrogliosis: a. cluster all around the CNS: Although astrocytes are part of the CNS, they do not form clusters all around the CNS during astrogliosis. Instead, their response is more localized to the injury site. b. bushy network surrounding the injury site: This statement is accurate. Astrocytes are known for forming a bushy network around the injury site to contain the damage and facilitate repair. They interact with other cells and form a glial scar, limiting the spread of inflammation and providing support for neuronal recovery. c. all are true: As we previously identified that option b is true while option a is false, it is incorrect to say that all the statements are true. So, the correct answer is: b. bushy network surrounding the injury site.