GENERAL HISTOLOGY

Detailed explanation-1: -The main function of glandular epithelium is to produce and release different secretory products, such as sweat, saliva, breast milk, digestive enzymes, and hormones, among other substances. Usually, these products are stored inside small membrane-bound vesicles which are then released from the cell.

Detailed explanation-2: -A gland consists of one or more cells that make and secrete a particular product. Unicellular glands are scattered within epithelial sheets. By contrast most multicellular epithelial glands form by invagination (inward growth) of an epithelial sheet into the underlying connective tissue.

Detailed explanation-3: -Two principal types of glands exist: exocrine and endocrine. The key difference between the two types is that, whereas exocrine glands secrete substances into a ductal system to an epithelial surface, endocrine glands secrete products directly into the bloodstream [1].

Detailed explanation-4: -Endocrine glands are ductless glands of the endocrine system that secrete their products, hormones, directly into the blood. The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

Detailed explanation-5: -Glands produce and release different hormones that target specific things in the body. You have glands all over your body, including in your neck, brain and reproductive organs. Some glands are tiny, about the size of a grain of rice or a pea. The largest gland is the pancreas, which is about 6 inches long.