What is the main secretion of the esophagus?

Related questions

1. What does the esophagus do in a cow?
2. What is proximal and distal in anatomy?
3. How can you tell the difference between distal and proximal?
4. How do you distinguish between proximal and distal convoluted tubules?
5. What is the anatomy of Oesophagus?
6. Why is Oesophagus important?
7. Is Ginger good for reflux?
8. What does distal mean in anatomy?
9. What is Oesophagus made of?
10. What is proximal to the elbow?

Tags

1. #bounded
2. #foodstuffs
3. #glands
4. #mucosa
5. #expressed
6. #sphincters
7. #allowing
8. #lower
9. #distend
10. #esophageal
11. #mucus
12. #known
13. #secreted
14. #lubrication
15. #contain
16. #mucous
17. #physiologic
18. #esophagus
19. #upper