25 Questions
What is the primary function of the nasal cavity in the respiratory system?
Warming, cleansing, and humidifying inhaled air
Which part of the respiratory system is responsible for gas exchange?
Lungs
What is the term for the sense of smell in the respiratory system?
Olfaction
What is the function of the guard hairs in the nasal cavity?
Protecting the nasal cavity from debris
What is the main difference between the upper and lower respiratory tracts?
The upper tract includes the head and neck, while the lower tract includes the trachea and lungs
What is the primary function of the pleurae?
To reduce friction and make it easy for the lungs to expand and contract
What is the term for the infection of the pleurae that makes breathing painful?
Pleurisy
What is the main muscle responsible for pulmonary airflow during quiet respiration?
Diaphragm
What is the term for the passage of air out of the lungs during a respiratory cycle?
Expiration
What is the space between the two layers of the pleurae called?
Pleural cavity
What happens when intrapulmonary pressure rises above atmospheric pressure?
Air moves out of the lungs
What is the purpose of using a spirometer in pulmonary ventilation?
To assess the severity of a disease and monitor improvement or deterioration
What is the term for the total amount of air that can be inhaled and exhaled with maximum effort?
Vital capacity
What is necessary for oxygen to get into the blood?
Oxygen must be dissolved in water and pass through the membrane
What is the volume of air remaining in the lungs after maximum expiration?
Residual volume
What is a consequence of O2 toxicity?
Damage to nervous tissue
What is a characteristic of emphysema?
Breakdown of alveolar walls
What is the most common type of lung cancer?
Squamous cell carcinoma
What is a consequence of chronic obstructive pulmonary disease (COPD)?
Polycythemia
How much more energy is spent on breathing in people with emphysema?
3 to 4 times
What is the main function of the epiglottis?
To keep food and drink out of the airway
What is the mucociliary escalator responsible for?
Keeping the airway clean by trapping debris
How many lobes does the right lung have?
3
What is the conducting zone responsible for?
Air flow only
What is the lining of the trachea composed of?
Pseudostratified ciliated columnar epithelia
Discover the respiratory system and its various functions, including gas exchange, communication, olfaction, and acid-base balance. Learn about the different organs involved in the process, such as the lungs, pharynx, and trachea. Test your knowledge of the respiratory system and its importance in the human body.
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