Esophagus: Anatomy & Physiology of the Digestive System
The esophagus secretes mucous and transports food to the stomach.
- Leads from the mouth to the stomach, lying behind the trachea.
- During swallowing, food is pushed into the esophagus by peristalsis (involuntary muscle contractions).
- It is a muscular, collapsible tube-like structure, approximately 23 – 25 cm long.