The primary functions of epithelium include:
A. |
To protect the tissues that lie beneath from radiation, desiccation, toxins, invasion by pathogens, and physical trauma |
B. |
The regulation and exchange of chemicals between the underlying tissues and a body cavity |
C. |
The secretion of hormones into the circulatory system, as well as the secretion of sweat, mucus, enzymes, and other products that are delivered by ducts |
D. |
To provide sensation |
E. |
Absorb water and digested food in the lining of digestive canal. |
1. All except D |
2. All except C and D |
3. All except C |
4. All |