👉 Glandules are structures in animals that produce and secrete substances, such as hormones or enzymes. These structures typically consist of cells called glands where they can be found in various parts of the body. The function of a glandule is to regulate bodily functions by secreting specific substances into the bloodstream for secretion. In simpler terms, a glandule is like a small organ that helps regulate the body's reactions and functions. It's where hormones are produced and released, which then affect other organs and