18 Questions
Which lung is wider?
Right lung
Where is the cardiac notch located?
Left lung
Which structure of the respiratory tree has the most smooth muscle?
Bronchioles
What is the primary function of bronchodilation?
Reduce airway resistance
What type of epithelium lines the alveoli?
Simple squamous epithelium
What is the function of surfactant produced by the alveoli?
Reduce surface tension in the alveoli
Which of the following is NOT a component of the respiratory tree?
Pleural cavity
What is the primary function of the bronchioles?
To conduct air to and from the alveoli
Which of the following is NOT a component of the total lung capacity?
Pleural cavity volume
What is the primary function of the alveoli?
To facilitate the exchange of gases between the air and the bloodstream
Which of the following is NOT a component of the respiratory minute volume?
Inspiratory reserve volume
What is the primary function of the pleural cavity?
To allow for smooth movement of the lungs during breathing
Which of the following statements about the respiratory membrane is correct?
Its large surface area and thin structure optimize gas exchange.
What is the primary function of type II pneumocytes?
To secrete surfactant, which reduces surface tension in the alveoli.
What is the primary function of macrophages in the respiratory system?
To remove dust particles and other foreign materials from the lungs.
During inspiration, what happens to the intrapleural pressure?
It decreases, becoming more negative than atmospheric pressure.
Which of the following is true about the process of expiration?
It is typically a passive process, relying on the elastic recoil of the lungs.
What is the primary function of the bronchioles in the respiratory system?
To conduct air to and from the alveoli during respiration.
Test your knowledge on the structure of the lungs and respiratory system including details on left and right lung characteristics, bronchial tree divisions, and muscle tissue in the lungs.
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