Multiple choice general knowledge science & technology

What is the percentage of oxygen and blood flow going to the brain?

  1. 20

  2. 30

  3. 40

  4. 50
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A Correct answer
Explanation

Although the brain represents only about 2% of body weight, it receives approximately 20% of the body's blood supply and consumes about 20% of oxygen intake. This disproportionate allocation reflects the brain's high metabolic demands and constant need for oxygen and nutrients to function properly.

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