Lab Practical II Actions Flashcards by Ashley Susie

Q

Frontalis Belly, Epicranius

A

Pulls scalp forward

* wrinkles forehead and raises eyebrows

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Q

Occipitalis Belly, Epicranius

A

*Pulls scalp backward

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Q

Procerus

A

*Depress eyebrows medially

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Q

Compressor Naris

A

*Compress cartilage at bridge of nose

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Q

Dilatator Naris

A

*Widens, dilates nostrils and anterior nasal aperture

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Q

Depressor Septi

A

*Widens nostril

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Q

Corrugator Supercilii

A

*Draws eyebrow medial and down

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Q

Levator Labii Superioris

A

*Raises and everts upper lip

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Q

Levator Labii Superioris Alaeque Nasi

A

Raises and everts upper lip

* Dilates nostril

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Q

Zygomaticus Major

A

*Draws angle of mouth up and out

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Q

Zygomaticus Minor

A

Raises upper lip

* Produces nasolabial groove

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Q

Levator Anguli Oris

A

Raises angle of mouth

* Produces nasolabial groove

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Q

Orbicularis Oris

A

Close mouth

* Purse and Protrude lips

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Q

Risorius

A

*Draws back angle of mouth

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Q

Mentalis

A

*Raises and protrudes lower lip

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Q

Depressor Labii Inferioris

A

*Draws lower lip down

Q

Depressor Anguli Oris

A

*Draws corner of mouth down and out

Q

Levator Palpebra Superioris

A

*Elevates upper eyelid

Q

Superior Rectus

A

*Elevate and adduct the cornea; intorsion

Q

Inferior Rectus

A

*Depress and adduct the cornea; extorsion

Q

Medial Rectus

A

*Adducts cornea

Q

Lateral Rectus

A

*Abducts cornea

Q

Superior Oblique

A

*Depress and abduct the cornea; intorsion

Q

Inferior Oblique

A

*Elevate and abduct the cornea; extorsion

Q

Temporalis

A

*Elevate and retract mandible

Q

Masseter

A

*Elevate and protract mandible

Q

Medial Pterygoid

A

Elevate and protract mandible

* Assists in gliding or rotatory movement

Q

Lateral Pterygoid

A

Protracts mandible
Pulls disc forward
Depress chin
Assist in gliding or rotatory movement