Exocrine glands include sweat glands, mammary glands, salivary glands and glands of the liver and pancreas. Exocrine glands vary in location within the body but essentially perform the same tasks. Several methods and techniques are used to classify exocrine glands, such as structure, method of secretion and product secreted.Continue Reading
Exocrine glands primarily work by secreting products (with the exception of hormones and other chemical messengers) from ducts and duct glands that lead directly onto surfaces such as skin. These glands are the counterparts to endocrine glands, which work by secreting products or hormones directly into the bloodstream through ductless glands. Alternatively, they release special hormones called paracrines into nearby target cells, which only enter the adjacent release site. Endocrine glands include adrenal glands, which are situated on top of the kidneys and secrete the hormone adrenaline along with several other hormones.
Exocrine glands have distinct structures characterized by glandular portions and duct components. Duct portions may be branched or unbranched; these structures are called compound and simple respectively. The glandular portion of glands may be classified as tubular or acinar or be a combination of the two types, referred to as tubuloacinar. Lastly, exocrine glands are termed apocrine, holocrine or merocrine depending on how they secrete products.Learn more about Science
According to Central Virginia Community College, endocrine glands secrete hormones into their internal environment and lack ducts. By contrast, exocrine glands secrete substances, such as wax, saliva and enzymes, into their external environment via ducts. The University of Leeds explains that both types of glands are comprised of secretory epithelial cells. During the course of development, some exocrine glands lose their ducts and become endocrine glands.Full Answer >
The salivary glands and the pancreas both produce the enzyme amylase. Amylase is an enzyme that breaks down carbohydrate molecules during the process of digestion.Full Answer >
The pancreas and the glands that produce saliva also produce amylase, an enzyme that helps the body digest food, notes MedlinePlus. Amylase enters the bloodstream when the pancreas becomes inflamed or is diseased.Full Answer >
Endocrinologists specialize in treating diseases of the endocrine system, which consists of glands that secrete hormones, including the pancreas, thyroid and adrenal glands, explains Hormone Health Network. Diabetes is a disease caused by problems in the pancreas.Full Answer >