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33 Cards in this Set
- Front
- Back
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Masticatory muscles |
Temporalis Masseter Pterygoideus lateralis Pterygoideus medialis |
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Temporalis |
O: Planum temporale,fascia temporalis I: Proc. coronoideusmandibulae F: Elevation of the mandible, posterior fibres pull themandible backward. |
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Masseter |
O: Arcus zygomaticus I: Tuberositas masseterica mandibulae F: Elevation of the mandible |
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Pterygoideus lateralis |
O: Facies infratemporalis Alae majoris ossis sphenoidalis Lamina lateralis proc. pterygoideus I: Fovea pterygoidea mandibulae F: Contractions on both sides push the mandible forward; contractions on one side push the mandible laterally |
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Pterygoideus medialis |
Origo: Fossapterygoidea ossis sphenoidalis Insertio: Tuberositas pterygoidea mandibulae Functio: Elevationof the mandible; contractions on both sides push the mandible forward;contractions on one side push the mandible laterally. |
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Mimetic muscles |
Muscles of the: Scalp Eye opening - Nose opening Mouth opening Ear opening |
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Scalp/Eye opening |
M. occipitofrontalis -venter occipitalis -venter frontalis M. corrugator supercilii M. orbicularis oculi -pars orbitalis -pars palpebralis -pars lacrimalis |
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M. occipitofrontalis -venter occipitalis -venter frontalis |
-venter occipitalis Origo: Linea nuchalissuperior Insertio: Galeaaponeurotica Functio: Lifting of the eyebrows andthe upper eyelids; produceshorizontal wrinkles of theforehead; facial expression ofastonishment. -venter frontalis Origo: Galea aponeurotica Insertio: Skin of eyebrow Functio:Lifting of the eyebrows and the upper eyelids; produces horizontal wrinkles of the forehead; facial expression of astonishment. |
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M currugator supercilii |
Origo: Glabella, margo supraorbitalis Insertio: Skin of the eye brow Functio: Pulls the skin of the eyebrowsdownward and medially;produces vertical wrinkles ofthe forehead; expression of the“thinker”. |
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M. orbicularis oculi -pars orbitalis -pars palpebralis -pars lacrimalis |
-pars orbitalis Origo: Lig. palpebralemediale Insertio: Lig. palpebralemediale Functio: Acts as sphincter. -pars palpebralis Origo: Lig. palpebrale mediale Insertio: Lig. palpebrale laterale Functio: Closes the eyelid. -pars lacrimalis Origo: Os lacrimale Insertio: Saccus lacrimalis Functio: Expands the lacrimal sac |
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Nose opening |
M. nasalis M. levator labii superiorisalaeque nasi |
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M. nasalis |
Origo: Proc. alveolarismaxillae Insertio: Cartilages ofthe externalnose Functio: Pulls the nasal wingdownward; reduces the size ofthe nostrils. |
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M. levator labii superioris alaeque nasi |
Origo: Proc. frontalis maxillae Insertio: Skinof the upper lip and nasal wing Functio: Elevatesthe nasal wing and upper lip upward, enlarges the size of the nostrils. |
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Mouth opening |
M.orbicularis oris -parsmarginalis -parslabialis M.levator anguli oris M.levator labii superioris M.zygomaticus major M.zygomaticus minor M.risorius M.buccinator M.depressoranguli oris M.depressorlabii inferioris M. mentalis |
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M. orbicularis oris |
-pars marginalis Origo: Fibresarranged circulary Insertio: Fibresarranged circulary Functio: Closes the lips; protrudes them forward (sucking shape). -pars labialis Origo: Fibres arranged circulary Insertio: Fibres arranged circulary Functio: Closes the lips; protrudes them forward
(sucking shape). |
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M. levator anguli oris |
Origo: Fossacanina Insertio: Skinat the angle of the mouth Functio: Liftsthe angle of mouth. |
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M. levator labii superioris |
Origo: Margoinfraorbitalis maxillae Insertio: Skinof the upper lip Functio: Liftsthe upper lip. |
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M. zygomaticus major |
Origo: Oszygomaticum Insertio: Skinat the angle of the mouth Functio: Liftsthe angle of mouth upward and laterally – expression of pleasure – laughingmuscle. |
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M. zygomaticus minor |
Origo: Oszygomaticum Insertio: Skinat the angle of the mouth Functio: Liftsthe angle of mouth upward and laterally – expression of pleasure – laughingmuscle. |
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M. risorius |
Origo: Fasciamasseterica Insertio: Skinat the angle of the mouth Functio: Pullsthe angle of mouth laterally; produces the nasolabial folds – expression ofpleasure – laughing muscle. |
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M. buccinator |
Origo: Proc.alveolaris maxillae et mandibulae, raphe pterygomandibularis Insertio: Skinat the angle of the mouth Functio: Pullsthe angle of mouth laterally; compresses the cheeks – expression ofsatisfaction. |
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M. depressoranguli oris |
Origo: Basismandibulae Insertio: Skinat the angle of the mouth Functio: Pullsthe angle of the mouth downward – expression of sadness. |
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M.depressorlabii inferioris |
Origo: Basismandibulae Insertio: Skinof the lower lip Functio: Pullsthe angle of the mouth and lower lip downward – expression of preserverance |
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M. mentalis |
Proc. alveolaris mandibulae Skinof the chin Producessmall dimples in the chin – expression of doubt. |
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Ear opening |
M. auricularis anterior m. auricularis superior m. auricularis posterior |
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Fasciaecapitis |
Fascia temporalis Lamina superficialis Lamina profunda Fascia masseterica Fascia parotidea Fasciabuccopharyngea raphe pterygomandibularis |
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Articulations |
ART.TEMPOROMANDIBULARIS |
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ART.TEMPOROMANDIBULARIS Movements |
Elevationof the mandible Movementof the mandible downward Displacementof the mandible forward: Displacementof the mandible backward: Displacementof the mandible laterally: |
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Elevation of the mandible |
1) m. temporalis 2) m. masseter 3) m. pterygoideus medialis. |
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Movement of the mandible downward |
1) m. mylohyoideus 2) venter anterior m. digastrici 3) m. geniohyoideus 4) platysma 5) weight of themandible |
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Displacement of the mandible forward |
1) m. pterygoideus medialis 2) m. pterygoideus lateralis. |
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Displacement of the mandible backward |
Posteriorfibres of m.temporalis. |
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Displacement of the mandible laterally |
1) m. pterygoideus medialis 2) m. pterygoideus lateralis. |
