1. ESOFAGO

2. Esofago Giunzione squamocolonnare in retroversione Giunzione squamocolonnare in visione ravvicinata Transizione squamo colonnare dall’esofago medio

3. Esofago

4. Esofago

5. Esofago

6. Esofago

7. Esofago

8. Esofago 1. Esophagus (gullet) 1a. Spincter 1b. Aortic narrowing 1c. Diaphragmatic narrowing 2. Cricoid cartilage 3. Aortic arch 4. Bifurcation of trachea 5. Diaphragm

9. Esofago

10. Esofago 1. Esophagus (gullet) 1a. Spincter 1b. Aortic narrowing 1c. Diaphragmatic narrowing 2. Cricoid cartilage 3. Aortic arch 4. Bifurcation of trachea 5. Diaphragm

11. Esofago 6. Bolus of food 7. Esophageal muscles 7a. Contracted 7b. Relaxed