Multiple Choice
Which structure regulates the flow of contents from the stomach to the duodenum?
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23. The Digestive System
Introduction to the Digestive System
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Which structure is a muscular tube that connects the throat (pharynx) to the stomach?
A
Larynx
B
Esophagus
C
Duodenum
D
Trachea
Verified step by step guidance1
Step 1: Begin by identifying the function of each structure listed in the options. The larynx is part of the respiratory system and is involved in voice production and air passage, not food transport.
Step 2: Understand the role of the esophagus. It is a muscular tube that connects the pharynx (throat) to the stomach, facilitating the movement of food via peristalsis.
Step 3: Examine the duodenum. It is the first part of the small intestine and is involved in digestion, not in connecting the throat to the stomach.
Step 4: Consider the trachea. It is part of the respiratory system and serves as the windpipe, carrying air to the lungs, not food to the stomach.
Step 5: Based on the anatomical functions, conclude that the esophagus is the correct structure that connects the throat (pharynx) to the stomach.
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