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the superior, larger and more mobile of the two eyelids, which covers most of the anterior surface of the eyeball, including the cornea, when closed; a portion of the lacrimal gland and the aponeurosis of the levator palpebrae superioris muscle extend into it, the muscle opening the closed eye and providing additional elevation when the gaze is directed upward.
[pal′pəbrə] pl. palpebrae superiores,
the upper eyelid, larger and more movable than the lower eyelid and furnished with an elevator muscle.
palpebra(păl′pĕ-bră) plural.palpebrae [L.]
The lower eyelid.
The upper eyelid.