Exocrine
While the Endocrine System emits hormones that act on the inside of the body, chemicals that reach the outside of the body and act on its surfaces (or on the surfaces of body cavities) are released by glands that are part of the Exocrine system. Cavendish (2010:62) Anatomy and Physiology: An Illustrated Guide
Chemicals produced by the exocrine glands are not just released openly into tissue areas but are channeled through ducts so that they reach their target (somewhere on the body's exterior.) Cavendish (2010:62)Anatomy and Physiology: An Illustrated Guide
While Endocrine glands secrete hormones that travel through the blood, and are responded to when a something with a specific receptor recognises that hormone. Houghton Mifflin Harcourt website "Sciences" section, http://www.cliffsnotes.com/cliffsnotes/sciences/what-are-the-endocrine-and-exocrine-systems accesed 28/11/2013
The pancreas is an example of an organ that has an exocrine glandular system (as well as an endocrine one). Digestive enzymes secreted by the pancreas are needed in the intestine. Pandol (2010:1) The Exocrine Pancreas