Ductless gland 645303 217418690 2008-06-05T23:07:17Z UnRheal 2788470 [[WP:UNDO|Undid]] revision 215892485 by [[Special:Contributions/69.181.99.243|69.181.99.243]] ([[User talk:69.181.99.243|talk]]) {{Unreferenced|date=November 2007}} '''Ductless glands''' are [[gland]]s that secrete their product directly onto a surface rather than through a duct. Examples are the [[goblet cell]]s in the [[Epithelium|epithelial]] surface of the digestive, respiratory, urinary and reproductive systems. Many [[endocrine gland]]s are also ductless glands, as they secrete the hormones they produce directly into the blood or lymph system so it will be circulated to the entire body. The [[pineal gland]], the [[thymus|thymus gland]], the [[pituitary gland]], the [[thyroid|thyroid gland]], the [[spleen]], and the two [[adrenal gland]]s are all ductless glands. {{Anatomy-stub}} [[Category:Endocrine system]] [[Category:Glands]]