A drunk person' has earliest effect on which part of the brain?

Options

A. cerebrum
B. cerebellum
C. pons
D. medulla oblongata

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the earliest effect of alcohol consumption on the brain. This implies we need to identify which specific part of the brain is affected first when a person becomes intoxicated.

2. **Identifying the Brain Regions**: The brain is divided into several parts, including the cerebral cortex, cerebellum, and medulla. Each of these parts has different functions and roles in the body.

3. **Cerebral Cortex**: The cerebral cortex is the outermost layer of the brain and is responsible for higher brain functions such as thought, perception, and voluntary muscle movements. It is also involved in processing sensory information.

4. **Effect of Alcohol on the Cerebral Cortex**: When a person consumes alcohol, the cerebral cortex is the first area to be affected. This is because alcohol acts as a depressant, impairing cognitive functions, judgment, and motor skills.

5. **Conclusion**: Therefore, the earliest effect of alcohol on a drunk person is observed in the cerebral cortex.

### Final Answer:
The earliest effect of alcohol on a drunk person is on the **cerebral cortex**.

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