Term
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Definition
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ORIGIN
Occipital : highest nuchal line and mastoid process. Frontal: superior fibers of upper facial muscles |
[image] |
INSERTION
Galeal aponeurosis |
ACTION
Wrinkles forehead and fixes galeal aponeurosis |
NERVE
Posterior auricular and temporal branches of facial (VII) |
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Term
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Definition
ORIGIN
Nasal bone and cartilages |
[image] |
INSERTION
Skin of medial forehead |
ACTION
Wrinkles and 'frowns' forehead |
NERVE
Temporal branch of facial nerve (VII) |
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Term
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Definition
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ORIGIN
Frontal process of maxilla |
[image] |
INSERTION
Nasal aponeurosis |
ACTION
Opens and closes nostrils , particularly in forced respiration |
NERVE
Part of dilateralor nasalis is depressor septi from maxilla above central incisor to immobile part of nasal septum |
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Term
| Orbicularis Oculi Orbital |
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Definition
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ORIGIN
Medial orbital margin and lacrimal sac (orbital, palpebral and lacrimal parts) |
[image] |
INSERTION
Lateral palpebral raphe |
ACTION
Closes eyelids, aids passage and drainage of tears |
NERVE
Temporal and zygomatic branches of facial nerve (VII) |
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Term
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Definition
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ORIGIN
Medial infra-orbital margin |
[image] |
INSERTION
Skin and muscle of upper lip |
ACTION
Elevates and everts upper lip |
NERVE
Buccal branch of facial nerve (VII) |
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Term
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Definition
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ORIGIN
Lateral infra-orbital margin |
[image] |
INSERTION
Skin and muscle of upper lip |
ACTION
Elevates and everts upper lip |
NERVE
Buccal branch of facial nerve (VII) |
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Term
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Definition
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ORIGIN
Anterior surface of zygomatic bone |
[image] |
INSERTION
Modiolus at angle of mouth |
ACTION
Elevates and draws angle of mouth laterally |
NERVE
Buccal branch of facial nerve (VII) |
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Term
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Definition
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ORIGIN
Anterior surface of maxilla below infraorbital foramen |
[image] |
INSERTION
Outer end of upper lip and modiolus |
ACTION
Elevates angle of mouth |
NERVE
Buccal branch of facial nerve (VII) |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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ORIGIN
External alveolar margins of maxilla and mandible by molar teeth, to maxillary tubercle and pterygoid hamulus and posterior mylohyoid line respectively, then via pterygomandibular raphe between bones |
[image] |
INSERTION
Decussates at modiolus of mouth and interdigitates with opposite side |
ACTION
Aids mastication, tenses cheeks in blowing and whistling, aids closure of mouth |
NERVE
Buccal branch of facial nerve (VII) |
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Term
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Definition
ORIGIN
Anterior two thirds of zygomatic arch and zygomatic process of maxilla |
[image] |
INSERTION
Lateral surface of angle and lower ramus of mandible |
ACTION
Elevates mandible (enables forced closure of mouth) |
NERVE
Anterior division of mandibular nerve (V) |
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Term
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Definition
ORIGIN
Near midline on anterior surface of maxilla and mandible and modiolus at angle of mouth |
[image] |
INSERTION
Mucous membrane of margin of lips and raphe with buccinator at modiolus |
ACTION
Narrows orifice of mouth, purses lips and puckers lip edges |
NERVE
Accessory parts are incisivus labii superioris and inferioris |
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Term
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Definition
ORIGIN
Outer surface of mandible posterior to oblique line |
[image] |
INSERTION
Modiolus at angle of mouth |
ACTION
Depresses and draws angle of mouth laterally |
NERVE
Mandibular branch of facial nerve (VII) |
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Term
| Depressor Labii Inferioris |
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Definition
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DEPRESSOR LABII INFERIORIS
ORIGIN
Outer surface of mandible along oblique line |
[image] |
INSERTION
Skin of lower lip |
ACTION
Depresses and draws lower lip laterally |
NERVE
Mandibular branch of facial nerve (VII) |
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Term
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Definition
ORIGIN
Anterior and superior manubrium and superior medial third of clavicle |
[image] |
INSERTION
Lateral aspect of mastoid process and anterior half of superior nuchal line |
ACTION
Flexes and laterally rotates cervical spine. Protracts head when acting together . Extends neck when neck already partially extended |
NERVE
Spinal accessory nerve (lateral roots C1-5) |
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Term
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Definition
ORIGIN
Incisive fossa on anterior aspect of mandible |
[image] |
INSERTION
Skin of chin |
ACTION
Elevates and wrinkles skin of chin and protrudes lower lip |
NERVE
Mandibular branch of facial nerve (VII) |
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Term
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Definition
ORIGIN
Deep fascia of face and parotid |
[image] |
INSERTION
Modiolus and skin at angle of mouth |
ACTION
Retracts angle of mouth |
NERVE
Buccal branch of facial nerve (VII) |
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Term
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Definition
ORIGIN
Skin over lower neck and upper lateral chest |
[image] |
INSERTION
Inferior border of mandible and skin over lower face and angle of mouth |
ACTION
Depresses and wrinkles skin of lower face and mouth. Aids forced depression of mandible |
NERVE
Cervical branch of facial nerve (VII) |
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Term
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Definition
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LEVATOR SCAPULAE
ORIGIN
Posterior tubercles of transverse processes of C1-4 |
[image] |
INSERTION
Upper part of medial border of scapula |
ACTION
Raises medial border of scapula |
NERVE
Anterior primary rami of C3 and C4 and dorsal scapular nerve (C5) |
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Term
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Definition
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[image]
TRAPEZIUS
ORIGIN
Medial third superior nuchal line, ligament nuchae, spinous processes and supraspinous ligaments to T12 |
[image] |
INSERTION
Upper fibers to lateral third of posterior border of clavicle; lower to medial acromion and superior lip of spine of scapula to deltoid tubercle |
ACTION
laterally rotates, elevates and retracts scapula. If scapula is fixed, extends and laterally flexes neck |
NERVE
Spinal accessory nerve (C1-5)(spinal nerves C3 and C4 for proprioception) |
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Term
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Definition
ORIGIN
Lower ligament nuchae, spinous processes and supraspinous ligaments T1-3 |
[image] |
INSERTION
Lateral occiput between superior and inferior nuchal lines |
ACTION
Extends and rotates cervical spine |
NERVE
Posterior primary rami of C3, 4 |
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Term
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Definition
ORIGIN
Anterior and superior manubrium and superior medial third of clavicle |
[image] |
INSERTION
Lateral aspect of mastoid process and anterior half of superior nuchal line |
ACTION
Flexes and laterally rotates cervical spine. Protracts head when acting together . Extends neck when neck already partially extended |
NERVE
Spinal accessory nerve (lateral roots C1-5) |
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Term
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Definition
ORIGIN
Temporal fossa between inferior temporal line and infratemporal crest |
[image] |
INSERTION
Medial and anterior aspect of coronoid process of mandible |
ACTION
Elevates mandible and posterior fibers retract |
NERVE
Deep temporal branches from anterior division of mandibular nerve (V) |
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Term
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Definition
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Term
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Definition
ORIGIN
Cartilage of auricle |
[image] |
INSERTION
Galeal aponeurosis |
ACTION
Adjusts position of ear |
NERVE
Temporal branch of facial nerve (VII) |
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Term
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Definition
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