Practical II Muscles and Action Flashcards

1
Q

Frontalis Belly, Epicranius

A

Pulls scalp forward, wrinkles forehead and raises eyebrows

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2
Q

Occipitalis Belly, Epicranius

A

Pulls scalp backwards

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3
Q

Procerus

A

Depress eyebrows medially

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4
Q

Compressor Naris

A

Compress cartilage at bridge of nose

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5
Q

Dilatator Naris

A

Widens, dilates nostrils and anterior nasal aperature

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6
Q

Depressor Septi

A

Widens nostril

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7
Q

Corrugator Supercillii

A

Draws eyebrow medial and down (forms vertical furrow between eyebrows)

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8
Q

Levator Labii Superioris

A

Raises and everts upper lip

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9
Q

Levator Labii Superioris Alaeque Nasi

A

Raises and everts upper lip; dilates nostril

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10
Q

Zygomaticus Minor

A

Raises upper lip; produces nasolabial groove

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11
Q

Zygomaticus Major

A

Draws angle of mouth up and out

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12
Q

Leator Anguli Oris

A

Raises angle of mouth; produces nasolabial groove

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13
Q

Orbicularis Oris

A

Close mouth; purse and protrude lips

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14
Q

Buccinator

A

Compress cheeks against teeth

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15
Q

Risorius

A

Draws back angle of mouth

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16
Q

Mentalis

A

Raises and protrudes lower lip

17
Q

Depressor Labii Inferioris

A

Draws lower lip down

18
Q

Depressor Anguli Oris

A

Draws corner of mouth down and out

19
Q

Levator Palpebra Superioris

A

Elevates upper eyelid

20
Q

Superior Rectus

A

Elevate and adduct the cornea; intorsion

21
Q

Inferior Rectus

A

Depress and adduct the cornea; extorsion

22
Q

Medial Rectus

A

Adducts cornea

23
Q

Lateral Rectus

A

Abducts cornea

24
Q

Superior Oblique

A

Depress and abduct the cornea; intorsion

25
Q

Inferior Oblique

A

Elevate and abduct the cornea; extorsion

26
Q

Temporalis

A

Elevate and retract mandible

27
Q

Masseter

A

Elevate and protract mandible

28
Q

Medial Pterygoid

A

Elevate and protract mandible; assits in gliding or rotatory movement

29
Q

Lateral Pytergoid

A

Protracts mandible; pulls disc forward; depress chin and assist in gliding or rotatory movement