Multiple Choice
In which part of the digestive system does the process of segmentation primarily occur?
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23. The Digestive System
Introduction to the Digestive System
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which structure is used by both the respiratory and digestive systems?
A
Trachea
B
Larynx
C
Esophagus
D
Pharynx
Verified step by step guidance1
Begin by understanding the role of the pharynx in the human body. The pharynx is a muscular tube that serves as a pathway for both air and food.
Recognize that the pharynx is divided into three regions: nasopharynx, oropharynx, and laryngopharynx. Each region has specific functions related to respiration and digestion.
The nasopharynx is primarily involved in the respiratory system, allowing air to pass from the nasal cavity to the larynx.
The oropharynx and laryngopharynx are involved in both the respiratory and digestive systems. They allow food to pass from the mouth to the esophagus and air to pass to the larynx.
Understand that the pharynx's dual role in both systems makes it unique compared to other structures like the trachea, larynx, and esophagus, which are dedicated to either the respiratory or digestive system.
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