Glandular function refers to the processes by which glands in the body produce and release substances such as hormones, enzymes, and other fluids. These substances play crucial roles in regulating various bodily functions, including metabolism, growth, and mood. Glands can be classified into two main types: endocrine glands, which release hormones directly into the bloodstream, and exocrine glands, which secrete substances through ducts to specific locations. Examples of important glands include the thyroid, which regulates metabolism, and the pancreas, which produces digestive enzymes and insulin. Proper glandular function is essential for maintaining homeostasis, the body's stable internal environment, and any dysfunction can lead to health issues.