Which of the Following Is True of the Blood-Brain Barrier

question 20

Multiple Choice

Which of the following is true of the blood-brain barrier?

• A) The barrier is uniform throughout the brain.
• B) The barrier is selectively permeable.
• C) The barrier functions to regulate the chemical composition of the cerebrospinal fluid.
• D) The barrier is formed by Schwann cells that line the capillaries of the brain.
• E)The barrier is formed by astrocytes.

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