Question

Astrocytes Select one: O a. cannot divide O b. can generate action potentials O c. line brain cavities containing CSF d. form the neural scar e. supply glucose to brain cells Clear my choice

Answer 1

The correct answer is option D.

•Astrocytes form the neural scar.

When an injury occurs to the nervous tissue,the astrocytes proliferate and migrate to the area of injury.

Astrocytes surround the area of injury and bring about scar formation.

•Astrocytes can divide.

• Astrocytes are not electrically excitable cells and cannot generate action potentials.

•Ependymal cells line the brain cavities containing CSF.

•Astrocytes regulate the energy supply to brain by increasing the blood flow to the neurons and do not directly supply the glucose.

Hence the answer is option D.