Which organ, about 2% of body weight, uses roughly 20% of the body's oxygen and glucose at rest?
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Brain
Although the brain makes up only a small fraction of total body weight, it uses a disproportionately large share of the body's energy. Even at rest, it needs a constant supply of oxygen and glucose to support signaling between neurons and maintain essential functions.
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- Which human organ accounts for only 2% of body weight but consumes about 20% of the body's oxygen and glucose?