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 1The endocrine system is a collection of glands that produces and secretes substances into the blood that are necessary for different processes of the body The exocrine system is a collection of glands that produces and secretes substances into ducts that are necessary to protect and lubricate the human bodyAlthough the response time of endocrine glands is longer than that of exocrine glands, the secretions of endocrine glands have longer duration of act This happens because the blood containing released substances is passed from kidneys for the purpose of filtration where they are reabsorbed and again transported to the target site
Chapter 12 Endocrine System Flashcards Quizlet
