North Carolina DMV Practice Test

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Prepare for the North Carolina DMV Test with flashcards and multiple-choice questions. Each question includes hints and explanations to help you succeed. Start your journey towards passing with confidence.

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Where does alcohol tend to concentrate more in the body?

The liver
The stomach
The lungs
The brain

The correct answer is: The brain

Alcohol tends to concentrate more in the brain because it is a water-soluble substance that crosses the blood-brain barrier easily. Once consumed, alcohol rapidly enters the bloodstream and is distributed throughout the body, but due to the brain's high water content and its vascularity, alcohol accumulates quickly in this organ. The brain is particularly sensitive to alcohol because it directly affects neurotransmitters and can impair cognitive functions, motor skills, and decision-making processes. The impact of alcohol in the brain can lead to reduced inhibitions, altered perception, and the potential for damaging effects to brain cells over time. While alcohol is processed by the liver and can also be present in the stomach and lungs, the concentration of alcohol that leads to intoxication primarily occurs in the bloodstream and is felt most acutely in the brain, which is why it is critical to be aware of its effects when consuming alcoholic beverages.