20 Questions
What is the main function of the paranasal sinuses?
Lighten the weight of the skull
Which of the following is NOT a structure of the pharynx?
Epiglottis
What is the main function of the larynx?
Conducts air
Which structure is NOT part of the wall of bronchioles?
Tracheal cartilage
About how many alveoli are present in each lung?
150 million
What is the function of the alveolus?
To exchange gases between inhaled air and blood
Which structures make up the respiratory membrane for gas exchange in the alveolus?
Alveolar epithelium, capillary endothelial cells, and fused basement membrane
How many lobes does the right lung have?
Three
What is the function of the pleural fluid?
To reduce friction between the parietal and visceral surfaces during breathing
Which structure lines the inner surface of the thoracic cavity?
Parietal pleura
What are the components of the respiratory membrane for gas exchange in the alveolus?
Alveolar epithelium and endothelial cells
What is the main function of the pleural fluid?
To provide lubrication and reduce friction between the parietal and visceral surfaces
How many lobes does the right lung have?
Three
What is the composition of the pleural membranes associated with the lungs?
Parietal pleura and visceral pleura
Which structure lines the inner surface of the thoracic cavity?
Parietal pleura
What is the primary purpose of the anular ligaments in the wall of the trachea?
To provide structural support to the tracheal cartilage
Which of the following is NOT a function of the paranasal sinuses?
Conduct air
In the bronchial tree, what is the role of the muscularis in the wall of bronchioles?
Facilitate bronchoconstriction and bronchodilation
Which structure in the larynx is responsible for preventing food and drink from entering the trachea?
Cartilage
What function does the laryngeopharynx serve in the respiratory system?
Passage way for swallowed food and drink between oral cavity and esophagus
Test your knowledge of the anatomy of the respiratory system and pharynx with this quiz covering the structure and functions of sinuses, pharynx, and larynx. Topics include frontal sinus, sphenoid sinus, maxillary sinus, ethmoid sinus, and the structure and functions of pharynx.
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