Include muscles that move the face, tongue, and larynx Responsible for verbal and nonverbal...
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Transcript of Include muscles that move the face, tongue, and larynx Responsible for verbal and nonverbal...
![Page 1: Include muscles that move the face, tongue, and larynx Responsible for verbal and nonverbal communication, eating, and control of eye movements](https://reader030.fdocuments.us/reader030/viewer/2022033108/56649f4e5503460f94c6f9ab/html5/thumbnails/1.jpg)
MUSCLES OF THE FACIAL
EXPRESSIONS
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Muscles of the Head & Neck
Include muscles that move the face, tongue, and larynx
Responsible for verbal and nonverbal communication, eating, and control of eye movements Subdivided into groups:
Muscles of facial expression Muscles of mastication Muscles of the tongue Muscles of the pharynx & larynx Muscles of the eye
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Muscles of Facial Expression
Originate on the surface of the skull Insertions are woven into the superficial
fascia and the dermis therefore, when they contract the skin moves
Innervated by the facial nerve
Make study cards – you will be tested on each and
everyone!
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Muscles of Facial Expression - Mouth
Buccinator – Compresses cheeks
Orbicularis oris - Compresses, purses lips
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F:Depressor labii inferioris - Depresses lip A:Levator labii superioris – Elevates upper lip D:Risorius - Draws corner of mouth to the side E:Depressor anguli oris – Depresses corner of
mouth C:Zygomaticus major, B:Zygomaticus minor –
retracts and elevates corner of mouth
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Mentalis – Elevates and protrudes lower lip
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Muscles of Facial Expression - The Eye
B: Corrugator supercilii – Pulls skin inferiorly and anteriorly; wrinkles brow
C: Orbicularis oculi – Closes eye
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Levator palpebrae superioris – Elevates upper eyelid
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Muscles of Facial Expression -
Nose
Procerus – moves nose, changes position and shape of nostrils
•Nasalis – compresses bridge, depresses tip of nose; elevates corners of nostrils
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Muscles of Facial Expression - Ear
Temporoparietalis – tenses scalp, moves pinna of ear
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Muscles of Facial Expression - Scalp
Frontalis – Raises eyebrows, wrinkles forehead
•Occipitalis – Tenses and retracts scalp
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Muscles of Facial Expression - Neck
Platysma – tenses skin of neck, depresses mandible
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1. Orbicularis oris2. Orbicularis oculi3. Frontalis4. Buccinator5. Zygomaticus major & minor
Quick Quiz