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Year 2 - Semester 2 ANAT 316 > Lecture 15: Face and Neck musculature > Flashcards

Lecture 15: Face and Neck musculature Flashcards

1
Q

Frontalis group

A

epicranial

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2
Q

Frontalis action

A

draws scalp back and raises eyebrows (SURPRISE)

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3
Q

Frontlis innervation

A

CN VII (temporal)

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4
Q

Frontalis Blood Supply

A

internal and external carotid a.

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5
Q

Frontalis Venous drainage

A

opthalmic v.

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6
Q

Corrugator supercilii group

A

orbital

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7
Q

Corrugator Supercilii action

A

draws eyebrows medially and inferiorly (MAD)

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8
Q

Corrugator Supercilii innervation

A

CN VII (temporal)

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9
Q

Corrugator Supercilii Blood supply

A

opthalmic a.

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10
Q

Corrugator SUpercilii venous drainage

A

superior opthalmic v.

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11
Q

orbicularis oculi group

A

orbital group (3 parts):
1. Orbital
2. Palpebral
3. Lacrimal

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12
Q

Orbicularis Oculi orbital action

A

Wink (tightly close eye)

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13
Q

Orbicularis oculi palpebral action

A

blink (loosely close eye)

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14
Q

Orbicularis oculi lacrimal action

A

Compress lacrimal sac (release tears)

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15
Q

Orbivularis Oculi innervation

A

CN VII (temporal & zygomatic)

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16
Q

Orbicularis Oculi Blood supply

A

facial a., superficial temporal a., & opthalmic a.

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17
Q

Orbicularis Oculi Venous Drainage

A

facial v.

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18
Q

Orbicularis Oris group

A

orbital

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19
Q

Orbicularis Oris Action

A

purse & protrude lips

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20
Q

Orbiculris oris innervation

A

CV VII (buccal & mandibular)

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21
Q

Orbicularis Oris blood supply

A

facial a.

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22
Q

Orbicularis Oris Venous Drainage

A

Facial v.

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23
Q

Bucinator Group

A

oral

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24
Q

Buccinator action

A

pull cheeks inward

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25
Q

Buccinator Blood supply

A

buccal & facial a.

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26
Q

Buccinator Venous drainage

A

Pterygoid plexus & internal maxillary v.

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27
Q

zygomaticus major group

A

oral

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28
Q

zygomaticus major action

A

superior/lateral movement of mouth corners (SMILE)

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29
Q

zygomaticus major innervation

A

CV VII (zygomatic & buccal)

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30
Q

zygomaticus major blood supply

A

facial a.

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31
Q

zygomaticus major venous drainage

A

facial v

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32
Q

Zygomaticus minor group

A

oral

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33
Q

zygomaticus minor actio

A

superior/lateral movement of mouth corners (SMILE)

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34
Q

zygomaticus minor innervation

A

CV VII (zyogmatic & buccal)

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35
Q

zygomaticus minor blood supply

A

facial a.

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36
Q

zygomaticus minor venous drainage

A

facial v.

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37
Q

Platysma group

A

neck

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38
Q

platysma action

A

inferior movement of mouth corners

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39
Q

platysma innervation

A

CV VII (cervical & mandibular)

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40
Q

platysma blood supply

A

facial a.

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41
Q

platysma venous drainage

A

facial v.

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42
Q

function of muscles of mastification

A

movement of the mandible

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43
Q

4 key muscles of mastification

A

-temporalis
-masseter
-medial pterygoid
-lateral pterygoid

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44
Q

Temporalis origin

A

temporal bone

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45
Q

temporalis insertion

A

coronoid process of mandible

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46
Q

temporalis action

A

elevate & retract mandible

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47
Q

temporalis innervation

A

CN V(3) (deep temporal)

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48
Q

temporalis blood supply

A

maxillary artery

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49
Q

temporalis venous drainage

A

deep temporal vein

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50
Q

Masseter Origin

A

zygomatic arch

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51
Q

masseter insertion

A

cornoid process & ramus of mandible

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52
Q

masseter action

A

elevate mandible & approximate teeth

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53
Q

Messeter innervation

A

CN V(3) (masseteric)

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54
Q

Messeter blood supply

A

maxillary a.

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55
Q

Messeter venous drainage

A

masseteric v.

56
Q

Medial Pterygoid origin

A

mexillary tubersoity & lateral pterygoid plate

57
Q

Medial Pterygoid Insertion

A

medial ramus & andle of mandible

58
Q

Medial pterygoid action

A

elevation & side-to-side movement of mandible

59
Q

Medial pterygoid innervation

A

CN V(3) (medial pterygoid)

60
Q

Medial pterygoid blood supply

A

maxillary a.

61
Q

Medial pterygoid venous drainage

A

pterygoid plexus

62
Q

Lateral pterygoid origin

A

greater wing & lateral pterygoid plate

63
Q

Lateral pterygoid insertion

A

condylar process of mandible

64
Q

Lateral pterygoid action

A

protraction & side-to-side movement of mandible

65
Q

Lateral pterygoid innervation

A

CV V(3) (lateral pterygoid)

66
Q

Lateral pterygoid blood supply

A

maxillary a.

67
Q

Lateral pterygoid venous drainage

A

pterygoid plexus

68
Q

Two major muscles in superficial anterior neck

A
  1. Platysma
  2. Sternocleidomastoid (SMC)
69
Q

SMC origin

A

manubrium & clavicle

70
Q

SMC insertion

A

mastoid process

71
Q

SCM action

A

Bilateral: flexion
Unilateral: head rotation & lateral flexion

72
Q

SMC innervation

A

CN XI

73
Q

SCM blood supply

A

superior thyroid a.

74
Q

SMC venous drainage

A

internal jugular vein

75
Q

Two groups of deep anterior neck muscles

A
  1. Hyoid muscles
  2. Scalene muscles
76
Q

Suprahyoid muscles (above hyoid)

A
  1. Digastric
  2. Stylohyoid
  3. Mylohyoid
  4. Geniohyoid
77
Q

Infrahyoid muscles (below hyoid)

A
  1. Omohyoid
  2. Sternohyoid
  3. Thyrohyoid
  4. Sternothyroid
78
Q

Digastric Origin

A

inferior border of mandible

79
Q

DIgastric insertion

A

temporal bone

80
Q

Digastric action

A

elevate hyoid & depress mandible

81
Q

Digastric innervation

A

CN V(3) (anterior) & CN VII (posterior)

82
Q

Digastric blood supply

A

facial a. (anterior), & Occipital a./posterior aricular a. (posterior)

83
Q

digastric venous drainage

A

internal jugular v.

84
Q

Stylohyoid origin

A

styloid process

85
Q

Stylohyoid insertion

A

hyoid

86
Q

Stylohyoid action

A

elevate/retract hyoid & elevate tongue

87
Q

Stylohyoid innervation

A

CN VII

88
Q

Stylohyoid blood supply

A

occipital a.

89
Q

stylohyoid venous drainage

A

internal jugular v.

90
Q

Mylohyoid origin

A

mylohyoid line (body of mandible)

91
Q

Mylohyoid insertion

A

other mylohyoid & hyoid

92
Q

Mylohyoid action

A

elevate hyoid, support tongue, depress mandible

93
Q

Mylohyoid innervation

A

CN V(3)

94
Q

Mylohyoid blood supply

A

facial a. & inferior alveolar a.

95
Q

Mylohyoid venous drainage

A

internal jugular v.

96
Q

other name for mylohyoid

A

oral diaphragm

97
Q

Geniohyoid origin

A

inferior mental spine (body of mandible)

98
Q

Geniohyoid insertion

A

hyoid

99
Q

Geniohyoid action

A

elevate/protrude hyoid

100
Q

Geniohyoid innervation

A

C1 (sheath of CN XII)

101
Q

Geniohyoid blood supply

A

lingual a.

102
Q

Geniohyoid venous drainage

A

internal jugular v.

103
Q

Omohyoid origin

A

scapula

104
Q

Omohyoid insertion

A

hyoid

105
Q

Omohyoid action

A

depress hyoid

106
Q

Omohyoid innervation

A

ansa cervicalis (C1-3)

107
Q

Omohyoid blood supply

A

superior & inferior thyroid a.

108
Q

Omohyoid venous drainage

A

superior and inferior thyroid v.

109
Q

Sternohyoid origin

A

manubrium (sternum)

110
Q

Sternohyoid insertion

A

hyoid

111
Q

Sternohyoid action

A

depress hyoid

112
Q

Sternohyoid innervation

A

ansa cervicalis (c1-3)

113
Q

Sternohyoid blood supply

A

superior thyroid a.

114
Q

Sternohyoid venous drainage

A

superior thyroid v.

115
Q

Thyrohyoid origin

A

thyroid cartilage

116
Q

Thyrohyoid insertion

A

hyoid

117
Q

Thyrohyoid action

A

depress hyoid

118
Q

Thyrohyoid innervation

A

C1 (sheath of CN XII)

119
Q

Thyrohyoid blood supply

A

superior thyroid a.

120
Q

Thyrohyoid venous drainage

A

superior thyroid v.

121
Q

Sternothyroid orign

A

manubrium (sternum)

122
Q

Sternothyroid insertion

A

thyroid cartilage

123
Q

Sternothyroid action

A

depress hyoid & open laryngeal inlet

124
Q

Sternothyroid innervation

A

ansa cervicalis (C1-3)

125
Q

Sternothyroid blood supply

A

superior thyroid a.

126
Q

Sternothyroid venous drainage

A

superior thyroid v.

127
Q

Scalene muscles origin and insertion

A

between ribs 1/2 & transverse processes of C1/2 vertebrae

128
Q

Scalene muscles fucntion

A

neck flexion & rotation

129
Q

Scalene muscles innervation

A

C3-8

130
Q

Scalene Muscles blood supply

A

inferior thyroid a.

131
Q

Scalene msucles venous drainage

A

inferior thyroid v.

132
Q

order of superficial to deep dissection to reach suboccipital triangle

A
  1. remove trapezius
  2. remove splenius capitis
  3. reflect levator scapulae
  4. remove semispinalis capitis
  5. Identify suboccipital triangle muscles
133
Q

3 major muscles of suboccipital triangle

A
  1. Obliquus Capitis Superior
  2. Rectus Capitis Posterior Major
  3. Obliquus Capitis Inferior
134
Q

1 adjacent muscles of suboccipital triangle

A

Rectus capitis posterior minor

135
Q

Function of adjacent muscle to suboccipital triangle

A

-neck ext & rotation
-postural support

136
Q

Contents of suboccipital triangle

A

-greater occipital n.
-vertebral a.

Year 2 - Semester 2 ANAT 316 (21 decks)

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