Facial Expression Muscles Flashcards by Crystal Wood | Brainscape

Q

Orbicularis oculi

A

ACTION-Eye closure

INNERVATION-facial nerve (CN VII)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Orbicularis oris

A

Action: mouth closure: closes lips, protrudes lips forward, presses lips against teeth

Innervation: facial nerve (CN VII)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Zygomaticus major/minor

A

Action: pull corners of lips upward

Innervation: facial nerve (CN VII)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Risorius

A

Action: pulls the corners of the mouth posteriorly (grin or grimace)

Innervation: facial nerve (CN VII)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Frontalis (Occipitofrontalis)

A

Action: raise eyebrows

Innervation: facial nerve (CN VII)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Buccinator

A

Action: compress cheeks

Innervation: facial nerve (CN VII)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Masseter

A

Action: jaw closure

Innervation: trigeminal nerve (CN V, mandibular branch)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

Temporalis

A

Action: Elevates mandible, closes jaw

Innervation: trigeminal nerve (CN V, mandibular branch)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly