Endocrine secretions are discharged, often through a duct, onto the surface of the skin or on the epithelial lining of an internal passageway that communicates with the exterior.

Question

Quizplus · Accepted Answer

Endocrine secretions are typically released directly into the bloodstream, not onto the surface of the skin or internal passageways. Exocrine glands, however, do release secretions onto the surface of the skin or into passageways that lead to the outside of the body.

Endocrine Secretions Are Discharged, Often Through a Duct, onto the Surface