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72 Cards in this Set

  • Front
  • Back
Frontalis
Origin
O: epicranial aponeurosis
Frontalis
Insertion
skin and subQ tissue of eyebrows and forehead
Frontalis
Action
elevates eyebrows and wrinkles skin of forehead; protracts scalp (indicating surprise or curiosity)
Frontalis
Innervation
N: temporal branch of facial nerve (CN-VII)
Orbicularis oculi
Origin
O: medial orbital margin; medial palpebral ligament; lacrimal bone
Orbicularis oculi
Insertion
I: skin around margin of orbit; superior and inferior tarsal plates
Orbicularis oculi
Action
A: closes eyelids; palpebral part does so gently; orbital part tightly (winking)
Orbicularis oculi
Innervation
N: temporal and zygomatic branches of facial nerve
Corrugator supercilii
Origin
O: medial end of supercillary arch
Corrugator supercilii
Insertion
I: skin superior to middle of supraorbital margin and supercillary arch
Corrugator supercilii
Innervation
N: temporal branch of facial nerve
Corrugator supercilii
Action
A: draws eyebrow medially and inferiorly, creating vertical wrinkles above nose (demonstrating concern or worry)
Procerus & transverse part of nasalis
Origin
O: fascia aponeurosis covering nasal bone and lateral nasal cartilage
Procerus & transverse part of nasalis
Insertion
I: skin of inferior forehead; between eyebrows
Procerus & transverse part of nasalis
Action
A: depresses medial end of eyebrow; wrinkles skin over dorsum of nose (conveying disdain or dislike)
Procerus & transverse part of nasalis
Innervation
N: buccal branch of facial nerve
levator labii superoris
Origin
O: Infraorbital margin (maxilla)
levator labii superoris
Insertion
I: Skin of upper lip
levator labii superoris
Innervation
N: buccal branch of facial nerve
levator labii superoris
Action
A: Part of delants of mouth; retract and elevate and/or evert upper lip; deepen nasolabial sulcus (sadness)
Orbicularis oris
Origin
medial maxilla and mandible; deep surface of perioral skin; angle of mouth
(modiolus)
Orbicularis oris
Insertion
I: mucous membrane of lips
Orbicularis oris
Action
A:tonus closes rima oris; phasic contraction compresses and protudes lips (kissing) or
resists distension (when blowing)
Orbicularis oris
Innervation
N: buccal branch of facical nerve
Buccinator
Origin
O: mandible, alveolar processes of maxilla and mandible, pterygomandibular raphe
Buccinator
Insertion
I: angle of mouth (modiolus); orbicularis oris
Buccinator
Action
A: presses cheek against molar teeth; works with tongue to keep food between occlusal surfaces and out of oral vestibule; resists distension (when blowing)
Buccinator
Innervation
N: buccal branch of facial nerve
Zygomaticus minor
Origin
O: anterior aspect of zygomatic bone
Zygomaticus minor
Insertion
I: skin of upper lip
Zygomaticus minor
Innervation
N: buccal branch of facial nerve
Zygomaticus minor
Action
A: part of dilators of mouth; retract (elevate) and/ or evert upper lip; deepen nasolabial sulcus (showing sadness)
Zygomaticus major
Origin
O: lateral aspect of zygomatic bone
Zygomaticus major
Insertion
I: angle of mouth (modiolus)
Zygomaticus major
Action
A: part of dilators of mouth; elevate labial commissure-bilaterally to smile (happiness); unilaterally to sneer (disdain)
Zygomaticus major
Innervation
N: buccal branch of facial nerve
Risorius
Origin
O: parotid fascia and buccal skin (highly variable)
Risorius
Insertion
I: angle of mouth (modiolus)
Risorius
Innervation
N: buccal branch of facial nerve
Risorius
Action
A: part of dilators of mouth; widens rima oris, as when grinning or grimacing
Depressor anguli oris
Origin
O: anterolateral base of mandible
Depressor anguli oris
Insertion
I: angle of mouth (modiolus)
Depressor anguli oris
Innervation
N: marginal mandibular branch of facial nerve
Depressor anguli oris
Action
A: part of dilators of mouth; depresses labial commissure bilaterally to frown (sadness)
Depressor labii inferioris
Origin
O: platysma and anterolateral body of mandible
Depressor labii inferioris
Insertion
I: skin of lower lip
Depressor labii inferioris
Innervation
N: marginal mandibular branch of facial nerve
Depressor labii inferioris
Action
A: part of dilators of mouth; retracts (depresses) and/ or everts lower lip (pouting, sadness)
Mentalis
Origin
O: body of mandible (anterior to roots of inferior incisors)
Mentalis
Insertion
I: skin of chin (mentolabial sulcus)
Mentalis
Action
A: elevates and protrudes lower lip; elevates skin of chin (showing doubt)
Mentalis
Innervation
N: marginal mandibular branch of facial nerve
Levator palpebrae superioris
Origin
O: lesser wing of sphenoid bone, superior and anterior to optic canal
Levator palpebrae superioris
Insertion
I: superior tarsus and skin of superior eyelid
Levator palpebrae superioris
Innervation
N: oculomotor nerve; deep layer supplied by sympathetic fibers
Levator palpebrae superioris
Action
A: elevates superior eyelid
Temporalis
Origin
O: floor of temporal fossa and deep surface of temporal fascia
Temporalis
Insertion
I: tip and medial surface of coronoid process and anterior border of ramus of mandible
Temporalis
Innervation
N: anterior trunk of mandibular nerve (CN-V3) via deep temporal branches
Temporalis
Action
A: elevates mandible, closing jaws; posterior, more horizontal fibers are 1° retractors of mandible
Masseter
Origin
O: inferior border and medial surface of maxillary process of zygomatic bone and zygomatic arch
Masseter
Insertion
I: angle and lateral surface of ramus of mandible
Masseter
Innervation
N: anterior trunk of mandibular nerve (CN-V3) via masseteric nerve
Masseter
Action
A: elevates mandible, closing jaws; superficial fibers make limited contribution to protrusion of mandible
Platysma
Origin
O: subcutaneous tissue of infraclavicular and supraclavicular regions
Platysma
Insertion
I: base of mandible; skin of cheek and lower lip; angle of mouth (modiolus); orbicularis
oris
Platysma
Innervation
N: cervical branch of facial nerve
Platysma
Action
A: depresses mandible (against resistance); tenses skin of inferior face and neck (Conveying tension and stress)
Sternocleidomastoid (SCM)
Origin
O: lateral surface of mastoid process of temporal bone and lateral half of superior nuchal
line
Sternocleidomastoid (SCM)
Insertion
I: sternal head: anterior surface of manubrium of sternum
clavicular head: superior surface of medial third of clavicle
Sternocleidomastoid (SCM)
Innervation
N: spinal accessory nerve (CN-XI motor); C2 & C3 nerves (pain & proprioception)
Sternocleidomastoid (SCM)
Action
: unilateral contraction: it and rotates it so face is turned superiorly toward opposite side