What does the upper esophageal sphincter do?

Related questions

1. What causes a weakened lower esophageal sphincter?
2. How is the esophagus adapted to its function?
3. What is esophagus function?
4. Is milk good for GERD?
5. What is the Oesophagus function?
6. Which foods relax the esophageal sphincter?
7. What is the lumen of the esophagus?
8. What nerves control the esophagus?
9. What forms the lower esophageal sphincter?
10. What passes through esophageal hiatus?

Tags

1. #allow
2. #closes
3. #intermittently
4. #tract
5. #barrier
6. #pharynx
7. #opens
8. #events
9. #various
10. #contents
11. #sphincter
12. #upper
13. #forms
14. #physiologic
15. #esophagus
16. #definition
17. #digestive
18. #passage
19. #between
20. #during
21. #esophageal