Which gland is situated in a bony structure in the middle of the base of the skull?

Options

A. Pituitary
B. Adrenal
C. Thyroid
D. Thymus

Explanation

**Step-by-Step Solution:**

1. **Identify the Location**: The question asks for a gland that is located in a bony structure at the base of the skull.

2. **Recall Gland Locations**: Think about the major glands in the human body and their locations. The pituitary gland is known to be located in the skull.

3. **Specific Location of the Pituitary Gland**: The pituitary gland is situated in a specific bony structure called the sella turcica, which is found in the middle of the base of the skull.

4. **Relation to Other Glands**: To confirm, consider the locations of other glands:
- The adrenal glands are located on top of the kidneys.
- The thyroid gland is located in the neck.
- The thymus is located in the thoracic cavity.

5. **Conclusion**: Based on the information gathered, the gland situated in a bony structure in the middle of the base of the skull is the pituitary gland.

**Final Answer**: The gland situated in a bony structure in the middle of the base of the skull is the **pituitary gland**.

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