What the question here are u askin wat type it is?...
Air enters the nasal cavity of the respiratory system through the nostril . The nasal cavityis divided by the midline nasal septum Thenasal cavity mucosa has several functions. Its major functions are to warm, moist and clean the incoming air.
The nasal cavity and the mouth meet at the pharynx, or throat, at the back of the nose and mouth. From there, air quickly enters the second part of your respiratory system, the trachea or windpipe. The trachea is a tube that delivers air to the lungs, the third and most important part of your respiratory system.
The fight-or-flight response. In reaction to stress, your body will either want to freeze or run away. For example, let’s say you suddenly see a bear in the park: you might experience the flight-or-fight response in reaction to seeing the bear because of the sudden stress you feel.