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Multiple Choice

The opening of the sebaceous glands within the eyelid which anatomically open to the lid margin is called what?

Meibomian gland orifices. Meibomian glands are the specialized sebaceous glands embedded in the eyelid, and their ducts open along the lid margin as tiny orifices. These openings release the oily meibum into the tear film, forming the lipid layer that helps prevent tear evaporation and keeps the surface lubricated. The lid margin is just the edge of the eyelid, the limbus is the border between cornea and sclera, and the glands themselves are the Meibomian glands; it’s the openings that are specifically named Meibomian gland orifices.

Meibomian gland orifices. Meibomian glands are the specialized sebaceous glands embedded in the eyelid, and their ducts open along the lid margin as tiny orifices. These openings release the oily meibum into the tear film, forming the lipid layer that helps prevent tear evaporation and keeps the surface lubricated. The lid margin is just the edge of the eyelid, the limbus is the border between cornea and sclera, and the glands themselves are the Meibomian glands; it’s the openings that are specifically named Meibomian gland orifices.