Assertion: skin's gland | /r/HasAspect | duct
Facets:
Source sentences:
text: Those structures include hair, nails, and certain exocrine glands (glands that have ducts or tubes that carry their secretions to the surface of the skin or into body cavities for elimination).
text: Endocrine glands have no ducts and release their products (hormones) directly into the bloodstream.