Face - Muscles Flashcards by Ryan Maher

Q

What is this structure?

A

Temporalis

Temporalis

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Q

Origin?

A

Temporal bone
Frontal bone
Parietal bone

Temporalis

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Q

Insertion?

A

Coronoid process of mandible

Temporalis

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Q

Innervation?

A

CN V3

Temporalis

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Q

Function?

A

Elevates mandible to close jaw

Temporalis

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Q

What is this structure?

A

Masseter

Masseter

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Q

Origin?

A

Zygomatic process of temporal and zygomatic bone

Masseter

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Q

Insertion?

A

Lateral surface of mandible

Masseter

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Q

Innervation?

A

CN V3

Masseter

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Q

Function?

A

Elevates mandible to close jaw

Masseter

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Q

What is this structure?

A

Buccinator

Buccinator

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Q

Origin?

A

Mandible
Maxilla

Buccinator

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Q

Insertion?

A

Lateral angle of mouth

Buccinator

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Q

What is this structure?

A

Orbicularis oris

Orbicularis oris

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Q

What is this structure?

A

Muscles of facial expression

Muscles of facial expression

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Q

What is this structure?

A

Platysma

Platysma

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Q

What is this structure?

A

Medial pterygoid

Medial pterygoid

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Q

What is this structure?

A

Orbicularis oculi

Orbicularis oculi

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Q

What is this structure?

A

Lateral pterygoid

Lateral pterygoid

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Q

What is this structure?

A

Frontalis

Frontalis

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Q

Innervation?

A

CN VII

Buccinator

Q

Function?

A

Tightens cheek

Buccinator

Q

Origin?

A

Pterygoid processes of:
* Sphenoid
* Palatine
* Maxilla

Medial pterygoid

Q

Insertion?

A

Medial surface of mandible

Medial pterygoid

Q

Innervation?

A

CN V3

Medial pterygoid

Q

Function?

A

Elevates mandible to close jaw
Small grinding movement to aid chewing

Medial pterygoid

Q

Origin?

A

Greater wing of sphenoid
Pterygoid processes

Lateral pterygoid

Q

Insertion?

A

Joint capsule of temporomandibular joint
Neck of condyloid process of mandible

Lateral pterygoid

Q

Innervation?

A

CN V3

Lateral pterygoid

Q

Function?

A

Protracts mandible and depresses chin to to open jaw
Moves jaw back and forth to aid chewing

Lateral pterygoid

Q

Origin?

A

Aponeurosis of scalp

Frontalis

Q

Insertion?

A

Skin of forehead

Frontalis

Q

Innervation?

A

CN VII (Facial)

Frontalis

Q

Function?

A

Elevates eyebrows
Furrows brow

Frontalis

Q

Origin?

A

Margin of orbit

Orbicularis oculi

Q

Insertion?

A

Skin around:
* Orbit
* Eyelids

Orbicularis oculi

Q

Innervation?

A

CN VII (Facial)

Orbicularis oculi

Q

Function?

A

Closes eyelids, winking, squinting

Orbicularis oculi

Q

Origin?

A

Maxilla and mandible
Skin around mouth

Orbicularis oris

Q

Insertion?

A

Skin/mucous membrane of lips

Orbicularis oris

Q

Innervation?

A

CN VII (Facial)

Orbicularis oris

Q

Function?

A

Closes lips, protrudes lips, moves lips

Orbicularis oris

Q

Origin?

A

Varied- Different bones and skin around face

Muscles of facial expression

Q

Insertion?

A

Skin of face

Muscles of facial expression

Q

Innervation?

A

CN VII (Facial)

Muscles of facial expression

Q

Function?

A

Various facial expressions

Muscles of facial expression

Q

Origin?

A

Skin near clavicle

Platysma

Q

Insertion?

A

Skin near mandible, lower lip

Platysma

Q

Innervation?

A

CN VII (Facial)

Platysma

Q

Function?

A

Tenses skin of inferior face/neck

Platysma