Alcohol is quick to find its way to the brain because ______.

A. the central aorta supplies it.

B. the brain contains more oxygen

C. of the brain's elevated location.

D. the brain contains more blood.

Answer: D. the brain contains more blood.

Alcohol is quick to find its way to the brain because the brain contains more blood. The brain gets a rich supply of blood and because alcohol enters the bloodstream which in turn, circulates the alcohol to the brain. Alcohol penetrates the brain easily because it can cross the blood-brain barrier. This means it can move from the cells directly. It is sometimes said that once brain cells die, they can never come back, but new research says that this may not be true. Scientists now think that in some parts of the brain, cells can regenerate, or come back.

Biology

3 years ago

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