Muscles of the head and face
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Frontalis | Origin: galea aponeurotica; Insertion: skin superior to orbit; Action: raises eyebrows, draws scalp anteriorly
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| Occipitalis | Origin: occipital and temporal bone; Insertion: galea aponeurotica; Action: draws scalp posteriorly
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| Temporalis | Origin: temporal fossa; Insertion: coronoid process and ramus of mandible; Action: closes mandible
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| Masseter | Origin: zygomatic arch; Insertion: angle and ramus of mandible; Action: closes mandible
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| Pterygoids (medial and lateral) | Origin: pterygoid processes of sphenoid bone; Insertion: medial ramus of mandible; Action: medial gliding of mandible (for chewing)
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| Orbicularis Oculi | Origin: frontal and maxilla on medial margin of orbit; Insertion: skin of eyelid; Action: closes eyelid
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| Orbicularis Oris | Origin: fascia of facial muscles near mouth; Insertion: skin of lips; Action: closes lips (also known as the kissing muscle)
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| Corrugator Supercilii | Origin: medial portion of frontal bone; Insertion: skin of eyebrows; Action: adducts eyebrows (pulls them medially)
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| Risorius | Origin: fascia of masseter; Insertion: skin at angle of mouth; Action: abducts corner of mouth (draws edge of mouth lateral, also known as the smiling muscle)
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| Mentalis | Origin: anterior mandible; Insertion: skin of chin below lower lip; Action: protrudes lower lip (also known as the frowning muscle)
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| Buccinator | Origin: maxilla and mandible near molar teeth; Insertion: orbicularis oris; Action: compresses cheek (also known as the blowing muscle)
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| Zygomaticus (major and minor) | Origin: zygomatic bone; Insertion: muscle and skin at angle of mouth; Action: elevates corners of mouth (in smiling and laughing)
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| Depressor Labii Inferioris | Origin: lateral mandible; Insertion: muscles and skin of lower lip; Action: depresses lower lip
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| Levator Labii Superioris | Origin: maxilla and zygomatic bone; Insertion: muscle and skin of lips; Action: elevates upper lip, flares nostril
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Created by:
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