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Myology > Facial Muscles > Flashcards

Facial Muscles Flashcards

0
Q

Temporaparietalis. (Scalp)

Deep to temporalis

A 
O- galea aponeurotica
I- fascia superior to ear
A- elevates the ear
N- CN 7 (vii) facial nerve
A- occipital, posterior auricular, opthamalic arteries
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1
Q

Occipitalfrontalis. (Scalp)

Involved in facial expressions of shock, fright and recognition.

A

Occipitalis
O- occipital & temporal bones
I- galea aponeurotica
A- draws scalp posteriorly, elevation of eyebrows.
N- facial nerve (CN7)
A- occipital, posterior auricular, ophthalmic

Frontalis
O- galea aponeurotica
I- fascia & skin of eyes & nose
A- draws scalp anteriorly
N- facial nerve (CN7)
A- occipital, posterior auricular, ophthalmic
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2
Q

Anterior Auricular. (Scalp)

A

O- galea aponeurotica & anterior temporal bone
I- anterior to ear
A- draws ear anteriorly
N- CN 7 (vii) facial nerve
A- superficial temporal & posterior auricular

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3
Q

Superior Auricular. (Scalp)

A

O- Galea aponeurotica & superior temporal bone.
I- superior to ear
A- draws ear superiorly
N- CN 7 (vii) facial nerve
A- superficial temporal & posterior auricular arteries

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4
Q

Posterior Auricular. (Scalp)

A 
O- posterior temporal bone
I- posterior to ear
A- draws ear posteriorly
N- CN 7 (vii) facial nerve
A- superficial temporal & posterior auricular arteries
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5
Q

Orbicularis oculi. (Eye)

A

3 parts
O- frontal, maxilla & lacrimal bones
I- forms an oval sphincter encircling the eye
A- closes and squints the eye
N- CN 7 (vii) facial nerve
A- facial & superficial temporal artery. Both are branches of the external carotid.

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6
Q

Corrugator supercilli. (Eye)

A 
O- inferior frontal bone
I- fascia of medial eyebrow
A- draws the eye inferiorly and medially. (Squinting)
N- CN 7 (vii) facial nerve
A- opthamalic artery
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7
Q

Levator palpebrae superioris. (Eye)

A 
O- sphenoid (anterior surface of the lesser wing)
I- tissue of upper eyelid.
A- elevates upper eyelid
N- CN 3 (iii) occulomotor
A- opthamalic artery
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8
Q

Procerus. (Nose)

A

O- fascia & skin of nasal bones
I- fascia & ski of the medial eyebrow
A- draws medial eyebrow inferiorly, causes squinting, wrinkles the skin of the nose upward.
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)

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9
Q

Nasalis

A 
Originates in 2 parts on the maxilla
O- transverse: maxilla lateral to nose
Alar: maxilla at nostrils
I- transverse: opposite sides of nasalis of upper cartilage.
Alar: alar cartilage of nose
A- transverse: constricts the nostrils
Alar: flares the nostrils
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)
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10
Q

Depressor septi nasi. (Nose)

A

O- maxilla, incisive fossa
I- cartilage of septum of nose
A- constricts nostrils by pulling septum down.
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)

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11
Q

Levator labii superioris aleque nasi (eye)

A

O- maxilla frontal process.
I- lateral part of upper lip, cartilage of nose
A- flares nostrils & elevates upper lip.
N- CN 7 (vii)
A- infra orbital artery (branch of maxillary)

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12
Q

Levator labii superioris. (Eye)

A 
O- maxilla, inferior orbital margin
I- lateral part of upper lip
A- elevates upper lip
N- CN 7 (vii) facial nerve
A- facial artery (branch of carotid artery)
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13
Q

Levator anguli oris

A 
O- maxilla, canine fossa
I- angle of the mouth, the modiolus
A- elevates the angle of the mouth
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)
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14
Q

Zygomaticus minor

A

O- zygomatic bone, close to zygomaticomaxillary suture.
I- upper lip
A- elevates upper lip
N- CN 7 (vii) facial nerve
A- facial artery (branch of external carotid)

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15
Q

Zygomaticus major. (Mouth)

A

O- Zygomatic bone, close to zygomaticotemporal suture
I- angle of the mouth, modiolus
A- elevates angle of the mouth
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)

16
Q

Risorius. (Mouth)

A

O- fascia of the mandible, superior to the masseter.
I- angle of the mouth, modiolus
A- draws the mouth laterally
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)

17
Q

Depressor anguli oris. (Mouth)

A 
O- oblique line of the mandible
I- angle of the mouth, modiolus
A- depresses the angle of the mouth 
N- CN 7(vii) facial nerve
A- facial artery (branch of the external carotid)
18
Q

Depressor labii inferioris. (Mouth)

A 
O- medial of oblique line of he mandible
I- midline of lower lip
A- depresses lower lip
N- CN 7 (vii) facial nerve
A- facial artery (branch of external carotid)
19
Q

Mentalis (Mouth)

A

O- incisive fossa of the mandible
I- skin of the chin
A- elevates, everts & protracts lower lip, pouting
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)

20
Q

Buccinator (Mouth)

A 
O- mandible & maxilla
I- lips & modiolus
A- compresses the cheeks against teeth
N- CN 7 (vii) facial nerve
A- facial artery (branch of the external carotid)
21
Q

Orbicularis oris (Mouth)

A

O & I- circular (sphincter) muscle around the lips. (Fibers pull towards each modiolus as the muscle contracts)
A- closes mouth & protracts lips
N- CN 7 (vii) facial nerve
A- facial artery (branch of external carotid)

22
Q

Temporalis (Mastication)

A 
O- temporal fossa
I- coronoid process & ramus of mandible
A- elevates and retracts he jaw
N- CN 5 (v) trigeminal nerve
A- maxillary & superficial temporal artery
23
Q

Masseter. (Mastication)

A

O- superficial layer: zygomatic bone & zygomatic arch
O- deep layer: inferior margin and deep surface of zygomatic arch
I- superficial layer: angle & 1/2 ramus of mandible
I- deep layer: coronoid process & 1/2 ramus of mandible
A- superficial layer: elevates & protracts the mandible @ TMJ
A- deep layer: elevates & retracts the mandible @TMJ
N- CN 5 (v) trigeminal nerve
A- maxillary artery (branch of external carotid)

24
Q

Medial Pterygoid

A

O- sphenoid mostly, palatine & maxilla (2 heads- deep & superficial)
I- angle & inferior surface of mandible
A- elevation, protraction & contralateral deviation of the mandible @ TMJ
N- CN 5 (v) trigeminal nerve
A- maxillary artery (branch of external carotid)

25
Q

Lateral Pterygoid

A

O- sphenoid (2 heads: superior & inferior)
I- capsule articular disc & neck of mandible
A- protraction & contralateral deviation of mandible @ TMJ
N- CN 5 (v) trigeminal nerve
A- maxillary artery (branch of external carotid)

Myology (3 decks)

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