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GA 2 > FACIAL MUSCLES > Flashcards

FACIAL MUSCLES Flashcards

0
Q

Facial muscles develop from the..

A

Second pharyngeal arch

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1
Q

Various structures in the facial area are located between the…
Superiorly:
Inferiorly:
Laterally:

A

S: superciliary arches
I: lower edge of mandible
L: ears

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2
Q

Facial muscles are innervated by

A

Branches of the facial nerve 7

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3
Q

Facial muscles are located in the

A

Superficial fascia

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4
Q

Facial muscles
Originate from:
Inserts in:

A

O: bone or fascia
I: skin

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5
Q

They are referred to as muscles of facial expressions

A

Facial muscles

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6
Q

Facial muscles act as _ & _ of the orifices of the face

A

Sphincters and dilators

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7
Q

3 groups of facial muscles

A

Orbital
Nasal
Oral

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8
Q

Muscles in the orbital group

A 
Orbicularis oculi ( outer orbital and inner palpebral part)
Corrugator supercilii
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9
Q

Muscles in the nasal group

A

Nasalis
Procerus
Depressor septi nasi

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10
Q

Muscles in the oral group

A

Orbicularis oris
Buccinator muscle
Upper group of muscles
Lower group of muscles

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11
Q

Muscles of the UPPER GROUP of ORAL

A 
Risorius
Zygomaticus MAJOR & MINOR
Levator labii superioris
Levator labii superioris alaeque nasi
Levator anguli oris
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12
Q

Muscles of LOWER GROUP of ORAL

A

Mentalis
Depressor labii inferioris
Depressor anguli oris

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13
Q

A large muscle that completely surrounds each orbital orifice and extends into each eyelid

A

Orbicularis oculi

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14
Q

Major action of orbicularis oculi

A

Closes the eyelids

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15
Q

2 parts of orbicularis oculi

A

Outer orbital part

Inner palpebral part

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16
Q

A broad ring that encircles the orbital and extends beyond the orbital rim

A

Outer orbital part

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17
Q

Closes the eyelid more FORCEFULLY and produce some wrinkling on the face

A

Outer orbital part

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18
Q

In the eyelids

Consists of muscle fibers in the MEDIAL CORNER OF THE EYE that arch across each lid to attach laterally

A

Inner palpebral part

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19
Q

Closes the eye GENTLY

A

Inner palpebral part

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20
Q

Second muscle in the orbital group which is deep to the eyebrows and the orbicularis oculi muscle

A

Corrugator supercilii

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21
Q

Muscle active when FROWNING

A

Corrugator supercilii

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22
Q

Corrugator supercilii
Origin:
Insertion:
Action:

A

Origin: Medial end of the superciliary arch
Insertion: skin of the medial half of the eyebrows
Action: draws the eyebrows towards the midline (causing VERTICAL WRINKLES above the nose)

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23
Q

Cause the VERTICAL WRINKLES above the nose

A

corrugator supercilii

24
Q

Major muscle of the nose

25
Q

Largest and best developed muscle of the nose

26
Q

Muscle that is active when the nares are flared

27
Q

Parts of NASALIS

A

Transverse part / Compressor naris

Alar part / dilator naris

28
Q

Transverse part or Compressor naris
Origin:
Insertion:
Action:

A

Origin: maxilla
Insertion: aponeurosis
Action: compresses the nares

29
Q

Alar part or Dilator naris
Origin:
Insertion:
Action:

A

Origin: maxilla
Insertion: alar cartilage
Action: draws the alar cartilage downward and laterally

30
Q

A small muscle superficial to the nasal bone

31
Q

Produce TRANSVERSE WRINKLES over the bridge of the nose

32
Q

Procerus
Origin:
Insertion:
Action:

A

Origin: nasal bone & upper part of the lateral nasal cartilage
Insertion: skin- over the lower part of the forehead between the eyebrows
Action: draws the medial border of the eyebrows downward = transverse wrinkles

33
Q

Depressor septi nasi
Origin:
Insertion:
Action:

A

Origin: maxilla (above CI)
Insertion: lower part of nasal septum
Action: assists in widening the nares

34
Q

A COMPLEX MUSCLE completing encircling the mouth

A

Orbicularis oris

35
Q

Orbicularis oris
Origin:
Insertion:
Action:

A

Origin: maxilla (sup/inf) / Buccinator
Insertion: SKIN and mucous membrane of the LIPS and INTO ITSELF
Action: for pursing the lips “whistling”

36
Q

Forms the muscular component of the cheek

A

Buccinator

37
Q

Used for forceful air expulsion

A

Buccinator

38
Q

Buccinator
Origin:
Insertion:
Action:

A

Origin: post part of MAXILLA and MANDIBLE opposite MOLAR TEETH & PTERYGOMANDIBULAR RAPHE
Insertion: lips
Action: assist in the forceful expulsion of air from the cheeks

39
Q

Depressor anguli oris
Origin:
Insertion:
Action:

A

Origin: mandible- below canine premolar and 1st molar
Insertion: skin and orbicularis oris near CORNER of mouth
Action: depresses the CORNER of the mouth

40
Q

Depressor labii inferioris
Origin:
Insertion:
Action:

A

Origin: infront of mandible
Insertion: lower lip
Action: depresses lower lip and moves it laterally

41
Q

Mentalis
Origin:
Insertion:
Action:

A

Origin: mandible - inf to incisor
Insertion: skin of the chin
Action: raises and protrudes the lower lip

42
Q

Deepest muscle of the lower grp of oral

43
Q

Helps position the lip when drinking from a cup or when pouting

44
Q

Wrinkles the skin of chin

45
Q

Thin superficial muscle that extends laterally from the corner of the mouth

46
Q

Produces a GRIN

A

Risorius :D

47
Q

Pulls the corner of mouth laterally and upwards :D

48
Q

Muscles that Produce a smile :)

A

Zygomaticus major and minor

49
Q

Muscles that Rises the corner of the mouth and move it laterally :)

A

Zygomaticus major and minor

50
Q

Zygomaticus major
Origin:
Insertion:
Action:

A

Origin: deep to orbicularis oculi along the post part of lat surface of zygomatic bone
Insertion: skin at the corner of the mouth
Action: rises the corner of mouth and move it laterally

51
Q

Zygomaticus minor
Origin:
Insertion:
Action:

A

Origin: zygomatic bone ant to the organs pf the zygomaticus major
Insertion: upper lip, medial to the corner of the mouth
Action: raise the corner of mouth and move it laterally

52
Q

Levator labii superioris
Origin:
Insertion:
Action:

A

Origin: maxilla
Insertion: skin of lip
Action: deepens furrow bet nose and corner of mouth during SADNESS

53
Q

Levator Labii Superioris Alaeque Nasi
Origin:
Insertion:
Action:

A

Origin: maxilla, next to the nose
Insertion: alar cartilage and skin of upper lip
Action: assist in flaring the nares

54
Q

Medial to levator labii superioris

A

Lls alaeque nasi

55
Q

Levator anguli oris
Origin:
Insertion:
Action:

A

Origin: maxilla
Insertion: skin at corner of mouth
Action: elevates corner of mouth

56
Q

More deeply placed and covered by the other two levators and the zygomaticus muscles

A

Levator anguli oris

57
Q

HELP deepen the furrow bet nose and corner of mouth during sadness

A

Levator anguli oris

GA 2 (21 decks)

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