Which of the following structures is present in the diencephalon ?

Options

A. Cerebral cortex
B. Cerebral lobes
C. Hypothalamus
D. Medulla oblongata

Answer

To determine which structure is present in the diencephalon, we need to analyze the given options one by one.

### Step-by-Step Solution:

1. **Identify the Structures**: The question asks which of the following structures is present in the diencephalon. The options provided are:
- Cerebral Cortex
- Cerebellum
- Hypothalamus
- Medulla Oblongata

2. **Analyze Each Option**:
- **Cerebral Cortex**: This is the outer layer of the cerebrum and is responsible for higher brain functions such as thought and action. It is not part of the diencephalon.
- **Cerebellum**: This structure is located at the back of the brain and is involved in coordination and balance. It is also not part of the diencephalon.
- **Hypothalamus**: This is a small region of the brain located below the thalamus and is part of the diencephalon. It plays a crucial role in hormone regulation, temperature control, and various autonomic functions.
- **Medulla Oblongata**: This is located in the brainstem and is responsible for autonomic functions such as breathing and heart rate. It is not part of the diencephalon.

3. **Conclusion**: Based on the analysis, the only structure that is present in the diencephalon is the **Hypothalamus**.

### Final Answer:
The structure present in the diencephalon is the **Hypothalamus** (Option 3).

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