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38 Cards in this Set
- Front
- Back
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Masseteric
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Origin: Zygomatic arch, facial crest, facial tuberosity
Insertion: Masseteric fossa Action: Raise mandible, cross-jaw movement Innervation: Mandibular nerve |
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Medial Pterygoid
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Origin: Pterygoid processes of sphenoid & palatine bones
Insertion: Angle of mandible (medial side) Action: Raise Mandible Innervation: Mandibular nerve |
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Lateral Pterygoid
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Origin: Pterygoid processes of sphenoid & palatine bones
Insertion: Mandibular condyle (neck) Action: Raise mandible; cross-jaw movement Innervation: Mandibular nerve |
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Temporal
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Origin: Temporal fossa
Insertion: Coronoid process of mandible Action: Raises mandible; cross-jaw movement Innervation: Mandibular Nerve |
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Digasticus-Caudal Belly
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Origin: Paracondylar process
Insertion: Tendinous intersection Action: Opens mouth Innervation: Facial nerve |
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Digastricus-Rostral Belly
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Origin: Tendinous intersection
Insertion: Ventral mandibular border Action: Opens mouth Innervation: Mandibular nerve |
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Mylohyoid
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Origin: Mylohyoid line
Insertion: Midline raphe under tongue Action: Sling for tongue; lift tongue toward palate Innervation: Mandibular nerve |
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Obicularis Oris
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Origin: Fibers run longitudinally around mouth
Insertion: Action: Closes lips in "O" shape Innervation: Dorsal & Ventral branches of Facial Nerve |
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Orbicularis Oculi
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Origin: Surrounds eyelid
Insertion: Action: Closes palpebral fissues Innervation: |
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Retractor Oculi Anguli Lateralis
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Origin: Temporal fascia
Insertion: Action: Draws lateral palpebral angle caudally Innervation: Facial Nerve |
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Frontalis
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Origin: Overlies temporal bone
Insertion: Portion of rostral ligament Action: Raise eyebrows, Innervation: Facial Nerve |
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Parotidoauricularis
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Origin: Covers parotid gland (ventral midline)
Insertion: Base of ear Action: Draws ear caudoventrally Innervation: Facial Nerve |
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Zygomaticus
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Origin: Zygomatic arch
Insertion: Blends into orbicularis oris Action: Draws angle of mouth caudally Innervation: Facial Nerve |
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Levator labii superioris
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Origin: Near infraorbital foramen
Insertion: Upper lip & lateral edge of nose Action: Raises upper lip; dilates nostrils Innervation: Facial Nerve |
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Genioglossus
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Origin: Chin
Insertion: Dorsal tongue and lyssa caudally Action: Depress and protrude tongue Innervation: Hypoglossal nerve |
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Styloglossus
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Origin: Stylohyoid bone
Insertion: Dorsal tongue, toward lyssa caudally Action: Retract tongue or draw it to L or R sides Innervation: Hypoglossal nerve |
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Hyoglossus
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Origin: Basihyoid
Insertion: Root (caudal 1/3 of tongue) Action: Depress and retract tongue Innervation: Hypoglossal nerve |
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Proper tongue muscle
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Origin: No bony attachment
Insertion: Action: Various tongue movements Innervation: hypoglossal nerve |
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Mylohyoid (tongue)
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Origin: Median mandibular border
Insertion: Action: Draws hyoid apparatus and tongue caudally Innervation: Mandibular Nerve |
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Geniohyoideus
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Origin: Rostral ventral mandible
Insertion: Basihyoid bone Action: Draws hyoid apparatus & tongue rostrally Innervation: Hypoglossal |
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Thyrohyoideus
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Origin: Thyroid cartilage
Insertion: Basihyoid Action: Retracts tongue Innervation: Cervical spinal nerves |
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Sternohyoideus
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Origin: Sternal manubrium
Insertion: Basihyoid Action: Retracts tongue Innervation: Cervical spinal nerves |
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Palatinus
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Origin: Soft palate
Insertion: Action: Shortens soft palate Innervation: Pharyngeal plexus |
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Tensor veli palatini
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Origin: Muscular process of tympanic temporal bone
Insertion: cranial soft palate Action: tensor of soft palate Innervation: Mandibular nerve |
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Levator veli palatini
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Origin: Muscular process of tympanic temporal bone
Insertion: Caudal soft palate Action: elevator of soft palate Innervation: pharyngeal plexus |
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Pterygopharyngeus
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Origin: Hamulus of pterygoid bone
Insertion: pharyngeal wall Action: shortens pharynx Innervation: pharyngeal plexus |
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Palatopharyngeus
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Origin: soft palate
Insertion: pharyngeal wall Action: shortens pharynx Innervation: pharyngeal plexus |
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Stylopharyngeus
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Origin: stylohyoid bone
Insertion: pharyngeal wall Action: Dilates pharynx Innervation: pharyngeal plexus |
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Hyopharyngeus
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Origin: hyoid
Insertion: mid-dorsal raphe of pharynx Action: constricts pharynx Innervation: pharyngeal plexus |
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Thyropharyngeus
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Origin: Thyroid cartilage
Insertion: mid-dorsal raphe of pharynx Action: constricts pharynx Innervation: pharyngeal plexus |
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Cricopharyngeus
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Origin: Cricoid cartilage
Insertion: Mid-dorsal raphe of pharynx Action: constricts pharynx Innervation: pharyngeal plexus |
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Sternothyroideus
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Origin: Sternal manubrium
Insertion: Lateral thyroid lamina Action: Draws larynx and hyoid apparatus caudally Innervation: ventral branches of cervical nerves |
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Thyrohyoideus
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Origin: Thyroid cartilage lamina
Insertion: Thyrohyoid bone Action: Retracts the hyoid apparatus Innervation: ventral branches of cervical nerves |
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Hyoepiglotticus
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Origin: Basihyoid
Insertion: Epiglottic cartilage Action: Depress epiglottis Innervation: Hypoglossal Nerve |
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Cricothyroideus
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Origin: Lateral cricoid cartilage
Insertion: Caudal-medial thyroid cartilage Action: tenses vocal cords Innervation: Cranial Laryngeal Nerve |
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Vocalis
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Origin: internal midline of thyroid cartilage
Insertion: Vocal process of arytenoid cartilage Action: Relaxes vocal cords Innervation: Caudal laryngeal nerve |
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Dorsal Cricoarytenoideus
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Origin: Cricoid lamina
Insertion: Muscular process of arytenoid cartilage Action: Open glottis Innervation: Caudal laryngeal nerves |
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Lateral Cricoarytenoideus
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Origin: Craniolateral cricoid cartilage
Insertion: Muscular process of arytenoid cartilage Action: Closes glottis Innervation: Caudal laryngeal nerves |
