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Questions and Answers
What is the primary function of the cilia in the nose?
What is the role of the epiglottis in the larynx?
What is the primary function of the respiratory zone in the lungs?
What is the relationship between intra-alveolar pressure and atmospheric pressure?
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What is the primary function of the trachea?
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What is the primary function of the pleura in the lungs?
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Study Notes
Respiratory System Functions
- The primary function of the cilia in the nose is to trap dust particles, bacteria, and other debris, preventing them from entering the lungs.
Larynx Functions
- The role of the epiglottis in the larynx is to separate the trachea from the esophagus, ensuring that food and liquids enter the esophagus and not the trachea.
Lung Functions
- The primary function of the respiratory zone in the lungs is to facilitate gas exchange, where oxygen is absorbed into the bloodstream and carbon dioxide is removed.
Pressure Relationships
- Intra-alveolar pressure is equal to atmospheric pressure at the end of expiration, and becomes slightly negative during inspiration, allowing air to enter the lungs.
Trachea Functions
- The primary function of the trachea is to conduct air from the larynx to the bronchi, branching into the left and right bronchi, which then enter the lungs.
Pleura Functions
- The primary function of the pleura in the lungs is to reduce friction between the lungs and chest wall, allowing for smooth movement during respiration, and providing a closed space for lung expansion.
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Description
Test your knowledge on the parts and functions of the respiratory system, including the nose, pharynx, larynx, trachea, and bronchial tree. Learn about the role of cilia in the nose in filtering out debris and pathogens. Explore how the nose helps in warming and humidifying incoming air.
