Levator Labii Superioris Alaeque Nasi Muscle

The levator labii superioris alaque nasi muscle raises the upper lip and dilates the nostril. The zygomaticus minor is a small bundle of muscle fibers lying in the area of the cheek. The levator labii superioris arises from the upper lip, carrying it a little forward. These three muscles, working together, form the nasolabial furrow, from the side of the nose to the upper lip, which is deepened in expressions of sadness. When these muscles work together with the levator anguli oris the ...

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    Full Levator Labii Superioris Alaeque Nasi Muscle Description

    [Continued from above] . . . furrow deepens into an expression of contempt or disdain. The zygomaticus major is larger than the minor, but it also lies in the cheek area and extends down to the mouth. It draws the angle of the mouth upward and backward in laughing.