18 Questions
What is the function of the respiratory system?
Transporting air into the lungs and capturing oxygen from the air
What is the main component of the respiratory epithelium?
Pseudostratified columnar epithelium with cilia
What is the role of goblet cells in the respiratory tract?
Secrete mucus to trap particles or microorganisms suspended in the air
What is the function of the turbinates in the nasal cavity?
Increase surface area for air filtration and warming
What is the purpose of the short, stiff hairs in the nostrils?
Prevent the passage of large particles of dust in the air
Where does gaseous exchange take place in the respiratory system?
In the lungs, capturing oxygen from the air and eliminating carbon dioxide
What is the function of the larynx?
To phonate and prevent the entry of solids or liquids into the respiratory system during swallowing
Which part of the respiratory system contains elastic cartilage and folds called vocal cords?
Larynx
What is the function of type 2 pneumocytes in the alveoli?
To secrete pulmonary surfactant proteins to reduce surface tension and prevent alveoli from collapsing
Which part of the respiratory system is responsible for the exchange of oxygen and carbon dioxide between the air and the blood?
Alveoli
Where does the trachea extend to?
Opening of the larynx and esophagus
What is the role of Clara cells in the bronchioles?
To eliminate toxins from the inhaled air and maintain surface tension to keep the bronchioles open
What is the purpose of the seromucous glands in the nasal cavity?
To heat up, hydrate, and condition the air before it continues its path to the lungs
Where do we find smooth and skeletal muscles that intervene in swallowing?
Pharynx
What is the composition of the walls of bronchioles?
(Simple cuboidal epithelium + smooth muscle) without mucus glands or lymphoid elements
What is responsible for maintaining surface tension to keep the bronchioles open?
Clara cells
What is responsible for preventing the trachea from collapsing?
Rings of hyaline cartilage
What is responsible for phagocytizing dust particles or inhaled microorganisms to maintain a sterile environment inside the lungs?
Alveolar macrophages
Test your knowledge about the respiratory system, its organs, and their functions in the process of breathing and gaseous exchange. This quiz covers the nasal cavity, mouth, pharynx, larynx, trachea, bronchi, bronchioles, and respiratory epithelium.
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