Which muscle is a thin band from the eye to the mouth that lifts the upper lip?

• A. Levator Labii Muscle
• B. Levator Anguli Oris
• C. Depressor Labii Inferioris
• D. Procerus Muscle

Answer: (A)

The key idea here is identifying the muscle that lifts the upper lip and runs from the eye area to the lip. The Levator Labii Superioris does exactly that: it originates near the infraorbital margin under the eye and inserts into the upper lip, and its action is to elevate the upper lip. Its name itself tells you what it does—levator means lifts, labii refers to the lip, and superioris indicates the upper part.

The other muscles have different roles. Levator Anguli Oris lifts the corners of the mouth, not the entire upper lip. Depressor Labii Inferioris pulls the lower lip downward. Procerus acts on the forehead to create transverse wrinkles and does not move the upper lip.