Face Muscles Flashcards by Mary M

Q

Corrugator supercillii action

A

Creates vertical lines between eyebrows

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Q

Corrugated supercilli innervation

A

Facial nerve (CNVII)

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Q

Occipitofrontalis action

A

Lifts eyebrows, creates horizontal lines across forehead

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Q

Orbicularis occuli action

A

Closes eyelids

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Q

Occipitofrontalis innervation

A

Facial nerve (CN VII)

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Q

Orbicularis occuli innervation

A

Facial nerve (CN VII)

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Q

Nasalis action

A

Opens the nostrils

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Q

Nasalis innervation

A

Facial nerve (CN VII)

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Q

Orbicularis oris action

A

Closes the lips

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Q

Orbicularis oris innervation

A

Facial nerve (CN VII)

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Q

Buccinator action

A

Presses cheek to molars

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Q

Buccinator innervation

A

Facial nerve (CN VII)

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Q

Zygomaticus major action

A

Raises corners of the mouth - smile

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Q

Zygomaticus major innervation

A

Facial nerve (CN VII)

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Q

Zygomaticus minor action

A

Lifts upper lip

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Q

Zygomaticus minor innervation

A

Facial nerve (CN VII)

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Q

Platysma action

A

Pulls lower lip down and laterally

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Q

Platysma innervation

A

Facial nerve (CN VII)

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Q

Temporalis origin

A

Lateral skull, temporal fossa

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Q

Temporalis insertion

A

Coronoid process, medial (internal) surface of ramus

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Q

Temporalis action

A

Elevate mandible

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Q

Temporalis innervation

A

Mandibular branch of CNV

Q

Masseter origin

A

Zygomatic bone & arch

Q

Masseter insertion

A

Lateral surface ramus and angle of mandible

Q

Masseter action

A

Elevate mandible

Q

Masseter innervation

A

Mandibular branch CNV

Q

Medial pterygoid origin

A

Medial surface of lateral pterygoid plate

Q

Medial pterygoid insertion

A

Medial surface of ramus and angle

Q

Medial pterygoid action

A

Elevate mandible

Q

Medial pterygoid innervation

A

Mandibular branch of CNV

Q

Lateral pterygoid superior origin

A

Greater wing of sphenoid

Q

Lateral pterygoid superior insertion

A

TMJ capsule & disc

Q

Lateral pterygoid superior action

A

Retrusion (stabilizes disk)

Q

Lateral pterygoid superior innervation

A

Mandibular branch of CNV

Q

Lateral pterygoid inferior origin

A

Lateral surface of lateral pterygoid plate

Q

Lateral pterygoid inferior insertion

A

Mandibular neck, just inferior to condyle

Q

Lateral pterygoid inferior action

A

Bilateral - protrusion

Q

Lateral pterygoid inferior innervation

A

Mandibular branch CNV

Q

Digastric anterior origin

A

Digastric fossa of mandible

Q

Digastric anterior insertion

A

Hyoid bone

Q

Digastric anterior action

A

Steadies hyoid bone

Q

Digastric anterior innervation

A

Mandibular branch of CNV

Q

Digastric posterior origin

A

Mastoid notch of temporal bone

Q

Digastric posterior insertion

A

Hyoid bone

Q

Digastric posterior action

A

Steadies hyoid bone

Q

Digastric posterior innervation

A

Facial nerve (through mastoid foramen)

Q

Suprahyoid origin

A

Medial surface of mandible, inferior mental spines

Q

Suprahyoid insertion

A

Superior surface of hyoid

Q

Suprahyoid action

A

Hyoid fixed - assist with Mandibular depression

Q

Suprahyoid innervation

A

Mandibular branch of CNV CNI

Q

Infrahyoid origin

A

Sternum, superior border scapula, thyroid cartilage

Q

Infrahyoid insertion

A

Inferior surface of hyoid and thyroid cartilage

Q

Infrahyoid action

A

Depression / fixation of hyoid

Q

Infrahyoid innervation

A

C1-3, CNI