A gland is an organ that synthesizes and releases a substance. There are two major types of glands: endocrine and exocrine. In some cases, the substance released by a gland lubricates tissues of the body that are commonly abraded. For example, mucus glands will secrete mucus to help lubricate the passage of food through the digestive tract. Given this information, which type of tissue will likely contain mucus glands?
A. Epithelial
B. Connective
C. Muscle
D. Nervous

2 Answer

  • A. Epithelial tissue
  • Answer:

    A. Epithelial


    One of the functions of epithelial tissues is the secretion of mucus, hormones, enzymes, etc. Based on the functions, epithelial tissues are classified as surface epithelium and glandular epithelium.

    The glandular cells present in glandular epithelium perform the function of secretion. Depending on the type of the gland, the epithelium present in the gland may secrete the substances through ducts or directly into the bloodstream.

    For example, the goblet cells are the unicellular exocrine glands that serve to secrete the mucus that serve the function of lubrication.