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Biology 7 Online
OpenStudy (leahhhmorgannn):

Check my answer? The blood-brain barrier occurs when the physical structures of the brain prevent blood from intermingling with the extracellular fluid of brain cells. This separation makes it difficult and dangerous to deliver drugs to specific regions of the brain. Therefore, further research on how the blood-brain barrier works is needed to allow more effective delivery of drugs. What potential ethical issues may inhibit such research?

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