4 years ago

Is it good or bad for our health to use substances which bypass a natural defense mechanism, such as the blood-brain barrier?

1 answer:

8 0

Answer:

Forms of passage of substances across the blood–brain barrier. (A) Passive diffusion: fat-soluble substances dissolve in the cell membrane and cross the barrier (e.g., alcohol, nicotine and caffeine). Water-soluble substances such as penicillin have difficulty in getting through.

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