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Structure and Function 2 > Exam 1- Facial Muscles > Flashcards

Exam 1- Facial Muscles Flashcards

0
Q

Muscles of the Nose (3)

A

Compressor Naris
Dilator Naris
Procerus

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1
Q

Muscle of the Eye

A

Orbicularis Oculi

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2
Q

Muscles of the Mouth (7)

A 
Orbicularis Oris
Levator Labii Superioris
Zygomaticus Major and Minor
Levator Anguli Oris
Risorius
Depressor Anguli Oris
Depressor Labii Inferioris
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3
Q

Action of Orbicularis Oculi

A 
Orbital Part (surrounds eyelids)- buries eyelids
Palpebral Part (within eyelids)- closes eyes

Clinical Note- closing eyelid is essential to preventing damage to the cornea; in cases of facial paralysis the eyes are covered (sewn shut in newborns)

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4
Q

Action of Compressor Naris

A

Compress nasal cartilages

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5
Q

Action of Dilator Naris

A

Dilates nostrils

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6
Q

Action of Procerus

A

Wrinkles skin of nose

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7
Q

Action of Orbicularis Oris

A

Closes mouth (surrounds lips)

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8
Q

Action of Levator Labii Superioris

A

Lifts upper lip

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9
Q

Action of Zygomaticus Major and Minor

A

Raise and Pull upper lip laterally

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10
Q

Action of Levator Anguli Oris

A

Raises corner of mouth

Clinical Note- in Bell’s Palsy there is drooping of the corner of the mouth

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11
Q

Action of Rissorius

A

Smiling muscle

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12
Q

Action of Depressor Anguli Oris

A

Tragedy Muscle

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13
Q

Action of Depressor Labii Inferioris

A

Depresses lower lip

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14
Q

Action of Mentalis

A

Wrinkles skin of chin

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15
Q

Action of Buccinator

A

Compresses mouth and keeps food between teeth when chewing

Clinical Note- patients with Bell’s Palsy have difficulty eating food; drooling

16
Q

Action of Frontalis/Occipitalis

A

Move scalp (attaches to Epicranial Aponeurosis); Frontalis raises eyebrows

Clinical Note- in Bell’s Palsy there is drooping of the eyebrows

17
Q

Action of Platysma

A

Stretches skin of neck

Structure and Function 2 (17 decks)

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