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Questions and Answers
Which muscles are involved when you frown and observe your forehead?
What muscle is involved in forcibly pulling the lower lip down wide?
Platysma
Which muscle do you use when you shut your eyes tightly?
Orbicularis Oculi
What muscle is engaged when you open your eyes wide in surprise?
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Which muscle turns the corners of your mouth down?
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What muscle is used when you suck in on your fingertip like a straw?
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Which muscle is involved when you smile to pucker your cheeks?
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What muscle is engaged when you pout your lower lip out?
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Which muscle do you use when you purse your lips to kiss or whistle?
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What muscle is involved when you draw your lips laterally with tension?
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Which muscle is used to show your upper teeth?
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What muscle do you use when pushing the lower lip out as far as you can?
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Which muscle do you feel contract when you clench the jaw and palpate the angles of the jaw?
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Which muscle contracts when you clench and palpate superior and anterior to the ears?
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Study Notes
Muscles of Facial Expression
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Buccinator: Involved in frowning; helps compress the cheeks.
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Frontalis: Activates when raising eyebrows; associated with surprise and frowning.
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Platysma: Responsible for pulling the lower lip down; helps in making grimacing expressions.
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Orbicularis Oculi: Closes the eyelids tightly; crucial for blinking and winking.
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Depressor Anguli Oris: Lowers the corners of the mouth; used for frowning and pouting.
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Zygomaticus: Engaged during smiling; pulls the corners of the mouth upward.
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Orbicularis Oris: Involved in pursing lips; essential for actions like kissing and whistling.
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Risorius: Draws the lips laterally; contributes to grinning or smirking.
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Levator Labii Superioris: Raises the upper lip; helps show upper teeth during expressions of aggression or surprise.
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Mentalis: Protrudes the lower lip; contributes to a pouting expression.
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Masseter: Major muscle for jaw clenching; felt during chewing.
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Temporal: Contracts when clenching the jaw; located superior and anterior to the ears.
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Description
Test your knowledge of the muscles involved in facial expressions with this quiz. Identify key muscles like Buccinator, Frontalis, and Platysma through various actions. Perfect for anatomy students and enthusiasts alike!
