Which muscle moves the forehead skin to elevate the eyebrows or wrinkle the forehead?
A) temporalis
B) frontalis
C) masseter
D) orbicularis oris
B
Explanation: A) The temporalis muscle is over the temple, not the forehead.
B) Correct! The frontalis muscle lies on the forehead directly over the frontal bone of the cranium.
C) The masseter muscle is on the side of the face, not the forehead.
D) The orbicularis oris is around the mouth, not on the forehead.
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