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ANAT 316 Term 1 > L15 - Face & Neck Musculature > Flashcards

L15 - Face & Neck Musculature Flashcards

1
Q

Rule of thumb for superifical (subcutaneous) muscles origins and inderstions

A
  • origins: facial bones or adjacent muscles
  • insertions: skin
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2
Q

Muscles of matication function

A

movement of mandible

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3
Q

How many key muscles of mastication are there?

A
  • temporalis
  • masseter
  • medial pterygoid
  • lateral pterygoid
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4
Q

temporalis: origin

A

temporal bone

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5
Q

temporalis: insertion

A

coronoid process of mandible

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6
Q

temporalis: action

A

elevate ansd retratc madible

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7
Q

temporalis: innervation

A

CN V3 (deep temporal)

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8
Q

temporalis: blood supply

A

maxillary artery

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9
Q

temporalis: venous drainage

A

deep temporal vein

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10
Q

masseter: origin

A

zygomatic arch

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11
Q

masseter: insertion

A

coronoid process and ramus of mandible

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12
Q

masseter: action

A

elevate mandible and approximate teeth

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13
Q

masseter: innervation

A

CN V3 (masseteric)

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14
Q

masseter: blood supply

A

maxillary artery

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15
Q

masseter: venous drainage

A

masseteric vein

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16
Q

medial pterygoid: origin

A

maxillary tuberosity and lateral pterygoid plate

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17
Q

medial pterygoid: insertion

A

medial ramus and angle of mandible

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18
Q

medial pterygoid: action

A

elevation and side-to-side movment of mandible

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19
Q

medial pterygoid: innervation

A

CN V3 (medial pterygoid)

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20
Q

medial pterygoid: blood supply

A

maxillary artery

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21
Q

medial pterygoid: venous drainage

A

pterygoid plexus

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22
Q

lateral pterygoid: origin

A

greater wing and lateral pterygoid plate

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23
Q

lateral pterygoid: inerstion

A

condyle process of mandible

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24
Q

lateral pterygoid: action

A

protraction and side to side movement of mandible

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25
Q

lateral pterygoid: innervation

A

CN V3 (lateral pterygoid)

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26
Q

lateral pterygoid: blood supply

A

maxiallry artery

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27
Q

lateral pterygoid: venous drainage

A

pterygoid plexus

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28
Q

Whata re the two major muscle dof the anterior muscle?

A
  • platysma
    -sternocleidomastoid (SCM)
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29
Q

sternocleidomastoid (SCM): origin

A

manubrium and clavicle

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30
Q

sternocleidomastoid (SCM): insertion

A

mastoid process

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31
Q

sternocleidomastoid (SCM): action

A
  • unilateral: head roation and lateral flexion
  • bilateral: flexion
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32
Q

sternocleidomastoid (SCM): innervation

A

CN XI

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33
Q

sternocleidomastoid (SCM): blood supply

A

superior thyroid artery

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34
Q

sternocleidomastoid (SCM): venous drainage

A

internal jugular vein

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35
Q

Muscles of surpahyoid (4)

A
  • digastric
  • stylohyoid
  • mylohyoid
  • geniohyoid
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35
Q

What are the two groups of the deep anterior neck?

A
  • hyoid muscles
  • scalene muscles
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36
Q

Hyoid muscles subgroups (2)

A
  • surpahyoid (above)
  • infrahyoid (below)
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37
Q

muscles of infrahyoid (4)

A
  • omohyoid
  • sternohyoid
  • thyrohyoid
  • sternothyroid
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38
Q

digastric: origin

A

inferior border of mandible

39
Q

digastric: insertion

A

temporal bone

40
Q

digastric: action

A

elevate hyoid and depress mandible

41
Q

digastric: innervation

A

CN V3 (anterior) and CN VII (posterior)

42
Q

digastric: blood supply

A

facial artery (anterior) and occipital artery/posterior auricular artery (posterior)

43
Q

digastric: venous drianage

A

internal jugular vein

44
Q

stylohyoid: insertion

45
Q

stylohyoid: origin

A

styoid process

46
Q

stylohyoid: action

A

elevate/retract hyoid and elevate tongue

47
Q

stylohyoid: innervation

47
Q

stylohyoid: blood supply

A

occipital artery

48
Q

stylohyoid: venous drainage

A

internal jugular vein

49
Q

mylohoid: origin

A

mylohoid line (body of mandible)

50
Q

mylohoid: insertion

A

other mylohoid and hyoid

51
Q

mylohoid: action

A

elevate hyoid, support tongue, depress mandible
(“oral diaphragm”)

52
Q

mylohoid: innervation

A

CN V3 (inferior alveolar)

53
Q

mylohoid: blood supply

A

facial artery and inferior alveolar artery

54
Q

mylohoid: venous drainage

A

internal jugular vein

55
Q

geniohyoid: origin

A

inferior mental spine (body of mandible)

56
Q

geniohyoid: insertion

57
Q

geniohyoid: action

A

elevate/protrude hyoid

58
Q

geniohyoid: blood supply

A

lingual artery

59
Q

geniohyoid: innervation

A

C1 (sheath of CN XII)

60
Q

geniohyoid: venous drainage

A

internal jugular vein

61
Q

Omohyoid: origin

62
Q

Omohyoid: insertion

63
Q

Omohyoid: action

A

depress hyoid

64
Q

Omohyoid: innervation

A

ansa cervicalis (C1-3)

65
Q

Omohyoid: blood supply

A

superior and inferior thyroid artery

66
Q

Omohyoid: venous drainage

A

superior and inferior thryoid vein

67
Q

sternohyoid: origin

A

manubrium (sternum)

68
Q

sternohyoid: insertion

69
Q

sternohyoid: action

A

depress hyoid

70
Q

sternohyoid: innervation

A

ansa cervicalis (C1-3)

71
Q

sternohyoid: blood supply

A

superior thyroid artery

72
Q

sternohyoid: venous drainage

A

superior thyroid vein

73
Q

thyrohyoid: origin

A

thyroid cartilage

74
Q

thyrohyoid: insertion

75
Q

thyrohyoid: action

A

depress hyoid

76
Q

thyrohyoid: innervation

A

C1 (sheath of CN XII)

77
Q

thyrohyoid: blood supply

A

superior thyroid artery

78
Q

thyrohyoid: venous drainage

A

superior thyroid vein

79
Q

sternoTHYROID: origin

A

manubrium (sternum)

80
Q

sternoTHYROID: insertion

A

thyroid cartilage

81
Q

sternoTHYROID: action

A

depress hyoid and open laryngeal inlet

82
Q

sternoTHYROID: innervation

A

ansa cervicalis (C1-3)

83
Q

sternoTHYROID: blood supply

A

superior thyroid artery

84
Q

sternoTHYROID: venous drainge

A

superior thyroid vein

85
Q

mow many scalene muscles are there?

86
Q

where do the scalne muscles originate and insert?

A

between ribs 1/2 and transvers processes of C1/2 vertebrae

87
Q

scalene muscles: actions (2)

A

neck flexion and roation

88
Q

scalene muscles: innervation

89
Q

scalene muscles: blood supply

A

inferior thyroid artery

90
Q

scalene muscles: venous drainage

A

inferior thryoid vein

91
Q

suboccipital triangle 3 major muscles

A
  • obiquus capitis superior
  • rectus capitis posterior major
  • obliquus capitis inferior
92
Q

suboccipital triangle adjacent muscle

A

rectus capitis posterior minor

93
Q

rectus capitis posterior minor: actions

A
  • neck extension and roation
  • postural support
94
Q

what nerve and artery are in the suboccipital triangle?

A
  • vertebral artery
  • grrater occipital nerve

ANAT 316 Term 1 (22 decks)

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