College of Massage Therapists of British Columbia (CMTBC) Practice Exam

Where are goblet cells found, and what is their primary function?

1. Connective tissues, secrete enzymes

2. Epithelial lining of organs, secrete mucus to protect mucous membranes

3. Blood plasma, transport nutrients

4. Skin layers, provide insulation

The correct answer is: Epithelial lining of organs, secrete mucus to protect mucous membranes

Goblet cells are specialized epithelial cells primarily located in the lining of various organs, such as the respiratory and gastrointestinal tracts. Their main function is to secrete mucus, which plays a crucial role in protecting and lubricating mucous membranes. The mucus produced by goblet cells serves to trap pathogens, particles, and other irritants, and it also helps to maintain moisture in the epithelial tissue. This protective mucous layer is essential for the proper functioning of these organs, as it aids in digestion and respiratory health by facilitating the movement of materials and providing a barrier against harmful substances. The other options describe functions or locations that do not correspond to the role of goblet cells. Connective tissues involve various cell types that contribute to structural support, which does not include goblet cells. Blood plasma transport does not pertain to the functions of goblet cells as they are associated with secretion rather than transport. Lastly, while skin layers do serve vital protective functions, they do not contain goblet cells, which are specifically part of epithelial tissue rather than dermal structure.