Name the inspiratory muscles of man.

Explanation

### Step-by-Step Solution:

1. **Understanding Breathing Process**:
- Breathing consists of two main phases: inspiration (inhaling) and expiration (exhaling). During inspiration, atmospheric air is drawn into the lungs.

2. **Role of Pressure in Breathing**:
- The movement of air into and out of the lungs is governed by pressure differences. The pressure inside the lungs is referred to as intrapulmonary pressure. When the intrapulmonary pressure is lower than atmospheric pressure, air flows into the lungs.

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