What are the 4 functions of epithelial tissue?

Related questions

1. At what level does the esophagus pierce the diaphragm?
2. What is the outer layer of the stomach called?
3. What is the stratified squamous epithelium?
4. Why does the esophagus have stratified squamous epithelium?
5. Where are squamous cells found?
6. What causes weak esophagus muscles?
7. Is esophagus a muscle?
8. How do I know if my esophagus is damaged?
9. Are squamous cells always cancerous?
10. What tissues are in the esophagus?

Tags

1. #ultimately
2. #entering
3. #cross
4. #underlying
5. #functions
6. #absorption
7. #stimuli
8. #materials
9. #general
10. #least
11. #layer
12. #secretion
13. #reception
14. #leaving
15. #sensory
16. #protection
17. #tissue
18. #tissues
19. #attributed
20. #epithelial