Glandular epithelia are specialized epithelial tissues that form glands. These glands can be classified into two types:
Exocrine glands: Secrete their products into ducts that lead to an epithelial surface. Examples include sweat glands, salivary glands, and gastric glands. Endocrine glands: Release their products, usually hormones, directly into the bloodstream. Examples include the thyroid gland and adrenal glands.
