Eye Muscles

1, cartilage of the upper eyelid; 2, its lower border, showing the openings of the Meibomian glands; 3, the cartilage of the lower eyelids, also showing its border the openings of the Meibomian glands; 4, 5, the lachrymal glands; 6, its ducts; 7, the plica semilunaris; 8, the caruneula lachrymal canals; 10,11, the superior and inferior lachrymal canals; 12, the lachrymal sac; 13, the nasal duct, terminating at 14 in the lower meatus of the nose.

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