Question

what type of cells line the ventricles of the brain?

○ epithelial cells
○ neurons
○ astrocytes
○ ependymal cells

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Explanation:

To determine the cells lining the brain's ventricles, we analyze each option:

• Epithelial cells: Generally line body surfaces/cavities but not brain ventricles.
• Neurons: Transmit nerve impulses, not for lining ventricles.
• Astrocytes: Support neurons, not for lining ventricles.
• Ependymal cells: Specialized glial cells that line the brain's ventricles and central canal of the spinal cord, involved in cerebrospinal fluid production/circulation.

Answer:

D. ependymal cells