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the upper respiratory track
The epiglottis.
your boogers
These are called cilia.
One statement that is not true of cilia in the respiratory tract is that they are responsible for gas exchange. Cilia are actually tiny hair-like structures that help move mucus and trapped particles out of the airways, but they do not participate in the exchange of oxygen and carbon dioxide. Their primary function is to keep the respiratory tract clear of debris and pathogens.
Of or pertaining to respiration; serving for respiration; as, the respiratory organs; respiratory nerves; the respiratory function; respiratory changes.
The trachea is the airway in the respiratory system.
The respiratory system is the system that handles breathing.
The Respiratory System
1. Respiratory system 2. Cardiovascular system
The respiratory mucosa helps to filter, humidify, and warm the air as it enters the respiratory system. It also produces mucus to trap particles and microorganisms, preventing them from entering the lungs. Additionally, the mucosa contains immune cells that help to defend against respiratory infections.