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

question 57

Multiple Choice

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

• A) The barrier is uniform, protecting all brain structures.
• B) The barrier pumps glucose out of the brain into the bloodstream.
• C) The barrier functions to regulate the chemical composition of the extracellular fluid surrounding the brain cells.
• D) The barrier is formed by cells that line the capillaries of the brain.
• E) The ventricles have a blood-brain barrier.

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