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Which of the Following Moves Inversely to Each Other

question 353

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Which of the following moves inversely to each other?


Definitions:

Orbicularis Oris

A complex of muscles in the lips that encircles the mouth, controlling movements such as closing, puckering, and protruding the lips.

Frontal Belly

Part of the occipitofrontalis muscle which moves the scalp, eyebrows, and forehead skin.

Epicranius

A muscle of the scalp that raises the eyebrows and wrinkles the forehead horizontally.

Platysma

A superficial muscle in the neck that plays a role in facial expression.

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