levator palpebri muscle

anatomy

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In eyelid
…of the lid-raising muscle, the levator of the upper lid. Impulses for closing come by way of the facial (seventh cranial) nerve, and for opening by way of the oculomotor (third cranial) nerve. The lid borders are kept lubricated by an oily secretion (called sebum) of the meibomian glands. This…
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In human eye: The protective mechanisms
…muscle and contraction of the levator palpebri of the upper lid; the smooth muscle of the upper lid, Müller’s muscle, or the superior palpebral muscle, also assists in widening the lid aperture. The lower lid does not possess a muscle corresponding to the levator of the upper lid, and the…
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