Question

Secretion stands as the main functions of this epithelium

• A. Squamous
• B. Cuboidal
• C. Columnar
• D. Pseudo stratified

Answer 1

The correct option is B

Cuboidal

Due to larger cytoplasmic volumes, cuboidal cells can undertake more complex functions such as secretion. Most secretory cells of glands are cuboidal epithelial cells. In addition, the ducts of most exocrine glands are lined by cuboidal cells as are most of the tubules in the kidneys. Simple squamous types assist in diffusion, osmosis and filtration phenomena. Simple Columnar epithelial cells secrete mucus, which acts as a lubricant. Single-layered non-ciliated columnar epithelium tends to indicate an absorptive function. Stratified columnar epithelium is rare but is found in lobar ducts in the salivary glands, the eye, pharynx and sex organs.