Which function is primarily served by the oropharynx during the respiratory process?
Solution
Correct Answer: Option A
The oropharynx plays a critical role in the respiratory and digestive systems. It is the part of the pharynx located behind the oral cavity and extends from the soft palate to the level of the hyoid bone. During the respiratory process, the oropharynx serves as a common passageway for both air and food.
Here are the key points to understand:
- The oropharynx allows the passage of inspired air from the nasal cavity to the larynx and subsequently the lungs.
- It also serves as a conduit for food and liquids from the mouth to the esophagus during swallowing.
- Unlike functions such as filtration (primarily carried out by the nasal cavity) or humidification (which occurs mainly in the nasal passages), the oropharynx's primary role is concerned with facilitating the passage of both respiratory air and ingested materials.
- This dual function explains why the oropharynx is anatomically and physiologically important in coordinating breathing and swallowing without obstruction.
Therefore, the correct answer is:
Passage of both air and food.
Reference: Gray's Anatomy, 42nd Edition, Volume 1, Chapter 10 - The Pharynx (Page 687)
Here are the key points to understand:
- The oropharynx allows the passage of inspired air from the nasal cavity to the larynx and subsequently the lungs.
- It also serves as a conduit for food and liquids from the mouth to the esophagus during swallowing.
- Unlike functions such as filtration (primarily carried out by the nasal cavity) or humidification (which occurs mainly in the nasal passages), the oropharynx's primary role is concerned with facilitating the passage of both respiratory air and ingested materials.
- This dual function explains why the oropharynx is anatomically and physiologically important in coordinating breathing and swallowing without obstruction.
Therefore, the correct answer is:
Passage of both air and food.
Reference: Gray's Anatomy, 42nd Edition, Volume 1, Chapter 10 - The Pharynx (Page 687)
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