Esophagus Anatomy and Function - How Food Travels to Your Stomach #97939 (License: Personal Use)

This medical illustration shows the upper digestive and respiratory anatomy, with clear labels for the esophagus (the muscular tube carrying food to the stomach), trachea (windpipe for air), and nasal passage. Saliva, produced in the mouth, begins chemical digestion before the bolus enters the esophagus via peristaltic contractions. The image emphasizes the separation of air and food pathways to prevent choking.

Used on educational health pages, anatomy tutorials, or gastroenterology resources to explain swallowing mechanics and digestive tract structure; targets students, patients, or general readers seeking basic physiology knowledge.