Which of the following pair is mismatched

Options

A. Cerebrum -voluntary activities
B. Cerebellum -body balance
C. Medulla oblongata controls activity of internal organs
D. Pons conciousness

Answer

To determine which of the following pairs is mismatched, we need to analyze each option provided in the question. Each option consists of an organ and its corresponding function.

### Step-by-Step Solution:

1. **Cerebrum**:
- **Function**: Regulates voluntary activities.
- **Analysis**: This is correct. The cerebrum is responsible for higher brain functions, including voluntary movement, reasoning, and sensory perception.

2. **Cerebellum**:
- **Function**: Brings balance in our body.
- **Analysis**: This is also correct. The cerebellum plays a crucial role in maintaining balance and coordinating voluntary movements.

3. **Medulla Oblongata**:
- **Function**: Controls activity of internal organs.
- **Analysis**: This is correct. The medulla oblongata is involved in autonomic functions such as heart rate, breathing, and blood pressure.

4. **Pons**:
- **Function**: Consciousness.
- **Analysis**: This is incorrect. The pons is primarily involved in regulating functions such as respiration, sleep, swallowing, and relaying signals between the cerebrum and cerebellum. It does not directly control consciousness.

### Conclusion:
The mismatched pair is **Pons - Consciousness**. Therefore, the correct answer is option 4.

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