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MCQ 1.1 > Muscles Of Facial Expression > Flashcards

Muscles Of Facial Expression Flashcards

1
Q

List 2 oral muscles

A

Orbicularis oris
Buccinator

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2
Q

What is the function of the Orbicularis oris

A

Closes lips

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3
Q

What is the function of the Buccinator

A

Pulls the cheek inwards against teeth and aids in mastication

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4
Q

What is the innervation of the Orbicularis oris

A

Buccal and mandibular branches of the facial nerve

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5
Q

What is the innervation of the Buccinator

A

Buccal branches of the facial nerve

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6
Q

List 3 of the nasal muscles

A

Nasalis
Procerus
Depressor septi nasi

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7
Q

What is the function of the Nasalis

A

Transverse part - compresses the nasal opening
Alar part - widens the nasal opening

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8
Q

What is the function of the Procerus

A

Pulls the eyebrows downwards to produce wrinkles over the nose (frowning)

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9
Q

What is the function of the depressor septi nasi

A

Pulls the nasal septum down to widen the nasal opening

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10
Q

What is the innervation of the Nasalis

A

Buccal branches of the facial nerve

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11
Q

What is the innervation of the Procerus

A

Temporal branches of the facial nerve

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12
Q

What is the innervation of the depressor septi nasi

A

Buccal branches if the facial nerve

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13
Q

List 3 orbital muscles

A

Orbicularis oculi
Corrugator supercilii
Depressor supercilii

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14
Q

What is the function of the orbicularis oculi

A

Palpebral part - gently closes the eyelids
Lacrimal part - drainage of tears
Orbital part - tightly closes the eyelids

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15
Q

What is the function of the Corrugator supercilii

A

Brings eyebrows together creating a vertical wrinkling along the bridge of the nose

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16
Q

What is the function of the depressor supercilii

A

Depression of the eyebrows

17
Q

What is the innervation of the orbicularis oculi

A

Temporal and zygomatic branches of the facial nerve

18
Q

What is the innervation of the Corrugator supercilii

A

Temporal branches of the facial nerve

19
Q

What is the innervation of the depressor supercilii

A

Temporal facial nerve

20
Q

List 3 Auricular facial muscles

A

Auricular anterior
Auricular superior
Auricular posterior

21
Q

What is the function of the Auricular anterior

A

Moves the auricle forward

22
Q

What is the function of the Auricular superior

A

Moves the auricle superiorly/upward and back

23
Q

What is the function of the Auricular posterior

A

Moves the auricle posteriorly/backwards

24
Q

What is the innervation of the Auricular anterior

A

Temporal facial nerve

25
Q

What is the innervation of the Auricular superior

A

Temporal facial nerve

26
Q

What is the innervation of the Auricular posterior

A

Temporal facial nerve

27
Q

What is the neck muscle called

A

Platysma

28
Q

What is the function of the Platysma

A

Lateral fibres - lowering the corners of the mouth and lower lip
Medial attachment - depresses the mandible and opens the mouth

29
Q

What is the innervation of the Platysma

A

Cervical facial nerve

30
Q

List the 2 scalp muscles

A

Temporalis
Occipitalfrontalis

31
Q

What is the function of the Temporalis

A

To elevate the mandible
Aid in closing of the jaw
Moving jaw side to side

32
Q

What is the innervation of the Temporalis

A

Temporal branches of the facial nerve

33
Q

What is the function of the Occipitalfrontalis

A

Occipital belly - retracts the scalp
Frontal belly - elevates eyebrows and wrinkles skin on the forehead

34
Q

What is the innervation of the Occipitalfrontalis

A

Temporal branches of the facial nerve

MCQ 1.1 (43 decks)

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