Questions and Answers
What muscle wrinkles the chin?
Mentalis
Which muscle pulls down the lower lip?
Depressor labii inferioris
What is the function of the orbicularis oris?
Compresses and protrudes the lips
What muscle compresses the cheek as in blowing or whistling?
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Which muscle elevates the upper lip?
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What is the action of the zygomaticus major muscle?
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What is the difference between zygomaticus major and zygomaticus minor?
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What muscle closes the eye and produces blinking?
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Which muscle draws the scalp backward and raises eyebrows?
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What muscle wrinkles the forehead and draws the scalp forward?
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Which muscle elevates and retracts the mandible?
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What is the main chewing muscle?
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What is the function of the platysma?
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What happens when both sternocleidomastoid muscles contract simultaneously?
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Which muscle extends the neck and head?
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What is the role of the pterygoid muscles?
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What muscle elevates and draws the tongue backward?
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What is the function of the genioglossus muscle?
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Study Notes
Mouth Muscles
- Mentalis: Creates wrinkles in the chin.
- Depressor labii inferioris: Responsible for pulling down the lower lip.
- Orbicularis oris: Compresses and protrudes the lips, plays a role in mouth movements.
- Buccinator: Compresses the cheek for actions like blowing and whistling; helps hold food between teeth during chewing.
- Levator labii superioris: Responsible for elevating the upper lip.
- Zygomaticus major: The larger muscle that pulls the mouth upward for smiling.
- Zygomaticus minor: The smaller muscle aiding in pulling the mouth upward for a smile.
Eye and Facial Muscles
- Orbicularis oculi: Closes the eye and facilitates winking, blinking, and squinting.
- Occipitalis: Draws the scalp backward and raises the eyebrows.
- Frontalis: Causes horizontal wrinkles in the forehead and draws the scalp forward.
Neck and Jaw Muscles
- Temporalis: Elevates and retracts the mandible, important for jaw movements.
- Masseter: The primary muscle used in chewing.
- Platysma: Depresses the mandible and pulls the lower lip down and back.
Neck Movement Muscles
- Sternocleidomastoid: Flexes the neck and head when both sides contract; aids in head rotation toward the opposite side when one side contracts.
- Trapezius: Extends the neck and head, facilitating upward head movement.
Tongue and Chewing Muscles
- Pterygoids: Facilitate grinding movements of teeth, critical for mastication.
- Styloglossus: Elevates and draws the tongue backward.
- Genioglossus: A fan-shaped muscle on the underside of the tongue that protrudes the tongue forward.
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Description
Test your knowledge of facial and neck muscles with these flashcards. Each card features a muscle name along with its function, helping you learn key terms related to anatomy. Perfect for students studying anatomy or related fields.
