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45 Cards in this Set
- Front
- Back
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Occipitalis
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Action: Retract scalp by pulling on galea- supports frontalis
Innervation: Facial- Posterior Auricular |
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Frontalis
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Action: Raises eyebrows and nasal skin. Surprise and transverse wrinkles on forehead
Innervation: Facial- Temporal |
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Orbicularis Oculi
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Action: Close lids & compress lacrimal sac
Innervation: Facial- Zygomatic & Temporal |
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Corrugator Supercilli
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Action: Draws eyebrows down and medial. Vertical wrinkles.
Innervation: Facial- Temporal *** Deep to Orbicularis Oculi |
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Nasalis
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Action: Transverse- Compresses nasal cartilages; Alar- widens nasal aperture
Innervation: Facial- Buccal |
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Procerus
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Action: Pulls down MEDIAL part of eyebrow; produces transverse wrinkles on nose bridge
Innervation: Facial- Buccal |
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Orbicularis Oris
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Action: Compresses lips together
Innervation: Facial-Buccal |
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Levator Labii Superioris Alequae Nasi
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Action: Elevates upper lip & alar part of nose
Innervation: Facial- Buccal |
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Levator Labii Superioris
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Action: Elevates & everts upper lip
Innervation: Facial- Buccal |
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Except for these agents all SSRI have significant inhibition of Cyp P450 enzymes
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Citalopram and its metabolite escitalopram
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Zygomaticus Minor
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Action: Elevates upper lip
Innervation: Facial- Buccal |
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Zygomaticus Major
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Action: Draws angle of mouth up and back- Laughing
Innervation: Facial-Buccal |
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Depressor Anguli Oris
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Action: Depresses angle of the mouth- frown
Innervation: Facial- Marginal Mandibular |
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Mentalis
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Action: Raises and protrudes lower lip
Innervation: Facial- Marginal Mandibular |
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Risorius
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Action: Retracts corner of the mouth
Innervation: Facial- Buccal |
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Buccinator
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Action: Compress cheeks against teeth
Innervation: Facial- Buccal |
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Platysma
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Action: Retracts & Depresses angle of the mouth
Innervation: Facial- Cervical |
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Temporalis
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Origin: Floor of Temporal fossa
Insertion: Tip of coronoid process & anterior border of ramus of mandible Action: Elevates mandible, retracts mandibl Innervation: CN V(3) |
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Masseter
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Origin: Medial surface of zygomatic arch
Insertion: angle of lateral surface of ramus of mandible Action: Eleates mandible Innervation: CN V(3) |
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Medial Pterygoid
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Origin: Medial surface of lateral Pterygoid plate
Insertion: Lower medial surface of ramus of mandible Action: Elevates mandible, protrudes jaw Innervation: CN V(3) |
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Lateral Pterygoid
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Origin: Superior Head- lower lateral surface of sphenoid bone
Inferior Head- lateral surface of lateral pterygoid plate Insertion: Neck of mandible, capusule & disc of TMJ Action: Protrudes and depresses chin when alone; moves side to side when alone Innervation: CN V(3) |
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Tensor Tympani
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Origin: Auditory Tube, Sphenoid & Temporal
Insertion: Malleus Action: Tenses tympanic membrane to reduce amplitude of vibration Innervation: CN V (3) |
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Stapedius Muscle
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Origin: Posterior wall of tympanic cavity
Insertion: Neck of Stapes Action: Pulls stapes back & decreases vibration range Innervation: Facial Nerve |
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Cricothryroid
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Increased tension of vocal folds
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Thyroarytenoid
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Decreased tension of vocal folds
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Posterior Cricoartytenoid
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Abduction
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Lateral Cricoarytenoid
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Adduction
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Transverse Arytenoid
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Closure of Rima Glottides
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Levator Palbebrae Superioris
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Origin: Lesser wind of sphenoid- anterosuperior to optic canal
Insertion: Skin of upper eyelid Action: Raises eyelid Innervation: Superior ramus of CN 3 |
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Superior Rectus
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Origin: Common Tendinous Ring
Insertion: Superomedial aspect of sclera Action: Raises and medially rotates eyeball Innervation: CN 3 |
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Inferior Rectus
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Origin: Common Tendinous Ring
Insertion: Inferomedia aspect of Sclera Action: Rotate down and medially Innervation: CN 3 |
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Medial Rectus
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Origin: Common Tendinous Ring
Insertion: Medial Aspect of Sclera Action: Rotate eye medially Innervation: CN 3 |
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Lateral Rectus
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Origin: Common Tendinous Ring
Insertion: Lateral Aspect of Sclera Action: Rotate eye Lateral Innervation: CN 6- Abducens |
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Superior Oblique Muscles
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Origin: Body of Sphenoid- superomedial to optic canal
Insertion: Superior Lateral aspect of posterior sclera Action: Rotates eye down and lateral Innervation: CN 4- Trochlear |
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Inferior Oblique
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Origin: Maxilla in anterior part of floor of orbit
Insertion: Inferior lateral aspect of posterior sclera Action: Rotate up and lateral Innervation: CN 3 |
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Cilliary Muscle
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Insert: Sclera
Action: Contraction modifies lens shape Innervation: Parasympathetic fibers of CN 3 |
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Sphincter Pupillae
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Located circumferential around pupil
Action: Reacts to light and closes Iris Innervation: Parasympathetic fibers via CN 3 |
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Dilator Pupillae
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Anterior to the iridial surface
Action: Reacts in fright and dim light and opens iris Innervation: Sympathetic fibers of CN 3 |
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Superior and Inferior Longitudinal Fibers of Tongue
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Origin: Hyoid, Mandible, Geniohyoid & mylohyoid
Action: Shorten the length of tongue Innervation: CN 12 |
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Transverse Fibers
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Origin: Hyoid, Mandible, Geniohyoid & mylohyoid
Action: Narrows and elongates tongue Innervation: CN 12 |
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Vertical Fibers
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Origin: Hyoid, Mandible, Geniohyoid & mylohyoid
Action: Flattens & Widens tongue Innervation: CN 12 |
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Genioglossus
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Insertion: Entire length of tongue
Action: Posterior fibers- protrude tongue Anterior fibers- Retract and depress tongue Innervation: CN 12 |
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Hyoglossus
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Insertion: Side & inferior aspect of tongue
Action: Depresses Tongue Innervation: CN 12 |
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Styloglossus
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Insertion: Side & inferior aspect of tongue
Action: Raises & retracts tongue Innervation: CN 12 |
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Palatoglossus
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Origin: Soft Palate
Insertion: Side of Tongue Action: Raises posterior part of tongue Innervation: CN 11 through pharyngeal branch of CN 10 |
