Assertion: sebaceous gland's secretion | /r/CreatedBy | sebaceous gland
Facets:
Source sentences:
text: A water impermeable secretion produced by a sebaceous gland covers the feathers and the birds spread it across their body using their beak or their head.
text: The oily secretion (sebum) produced by the sebaceous glands tends to keep the skin soft and pliable by forming a surface emulsion that spreads over the surface of the skin to retain moisture and help maintain proper hydration.36,37,68,152