Name the structure where inspired air is conditioned in man.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the structure in the human body where inspired air is conditioned. This means we need to identify the part of the respiratory system that prepares the air for the lungs.

2. **Identifying the Main Structure**: In humans, the primary way of breathing is through the nose. The nose plays a crucial role in the respiratory process.

3. **Function of the Nose**: The nose has a complex structure that provides resistance to airflow, which is beneficial for filtering and conditioning the air we breathe. This is important because it helps to trap particles and pathogens, preventing them from entering the lungs.

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