You ________ Your Mandible When You Grasp Your Upper Lip

Question

You ________ your mandible when you grasp your upper lip with your lower teeth.
A) rotate
B) extend
C) pivot
D) protract
E) pronate

Accepted Answer

Protraction refers to the movement of a body part anteriorly or forwardly. When you grasp your upper lip with your lower teeth, you extend your mandible and move it forward, which is known as protraction. Rotation (A), extension (B), pivot (C), and pronation (E) do not accurately describe this movement.