Which structure is the throat that serves as the passageway for food to the esophagus?

• A. Bronchi
• B. Pharynx
• C. Pleura
• D. Alveoli

Answer: (B)

The main idea is that swallowing uses a shared passageway called the pharynx. The pharynx is a muscular tube behind the mouth and nasal cavity that funnels food down toward the esophagus. During swallowing, food moves from the oropharynx into the laryngopharynx, and the epiglottis helps direct it away from the airway so it enters the esophagus through the upper esophageal sphincter. This makes the pharynx the structure responsible for carrying food from the throat to the esophagus. In contrast, bronchi carry air to the lungs, pleura lines the lungs, and alveoli are the air sacs where gas exchange occurs, so they’re not involved in guiding food to the esophagus.