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anat 316 > Face and Neck Musculature > Flashcards

Face and Neck Musculature Flashcards

1
Q

What is the general origin of the muscles of facial expression

A

facial bones or adjacent muscles

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2
Q

What is the general insertion of the muscles of facial expression?

A

skin

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2
Q

what is the general function of the muscles of facial expressions

A

sphincters/dilators
and altering facial expression

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2
Q

What muscle is on the forehead

A

the frontalis

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2
Q

What muscle is under the eyebrows

A

corrugator supercilli

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3
Q

What muscle is right above corners of the mouth

A

buccinator

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4
Q

what muscle goes from under the the eye to around the lip

A

Maxilla

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5
Q

what muscle is on the neck

A

platissma

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6
Q

What muscles surrounds the mouth

A

the buccinator and oribularis oris

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7
Q

What is the action of the frontalis?

A

draw scalp back and raise eyebrows

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8
Q

What is the innervation of the frontalis

A

CN 7 (temporal branch)

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9
Q

What is the blood supply of the frontalis

A

internal and external carotid artery

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10
Q

What is the venous drainage of the frontalis

A

opthalmic vein

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11
Q

what is the action of the corrugator supercilii

A

draw eyebrows medially and inferiorly (brow furrowing)

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12
Q

What is the innervation of the corrugator supercilii

A

CN 7 - temporal branch

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13
Q

What is the blood supply of the corrugator supercilii

A

opthalmic artery

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14
Q

What is the venous drainage of the corrugator supercilii

A

superior ophtalmic vein

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15
Q

what are the 3 groups of the orbicularis oculi

A

orbital, palpebral, lacrimal

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16
Q

what is the action of the orbital part of orbicularis oculi

A

wink - tightly close ye

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17
Q

what is the action of the palpebral part of the orbicularis oculi

A

blink - losely close eye

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18
Q

What is the action of the lacrimal part of the orbicularis oculi

A

compressing lacrimal sac (release tears)

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19
Q

what is the innervation of the orbicularis oculi

A

CN 7 - temporal and zygomatic

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20
Q

what is the blood supply of the orbicularis oculi

A

facial, superficial temporal, and ophthalmic arteries

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21
Q

what is the venous drainage of the orbicularis oculi

A

facial vein

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22
Q

What is the action of the orbicularis oris

A

purse and protude lips

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23
Q

what is the innervation of the orbicularis oris

A

CN 7 - buccal and mandibular

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24
Q

what is the blood supply of the orbicularis oris

A

facial artery

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25
Q

what is the venous drainge to the orbicularis oris

A

facial vein

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26
Q

What is the action of the buccinator

A

pull cheeks inward/medially

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27
Q

what is the innervation of the buccinator

A

CN 7 - buccal

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28
Q

What is the blood supply of the buccinator

A

buccal and facial artery

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29
Q

what is the venous drainage of the buccinator

A

pterygoid plexus and internal maxillary vein

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30
Q

What is the action of the zygomaticus major?

A

superior/lateral movement of mouth corners

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31
Q

what is innervation of zygomaticus major

A

CN 7 - zygomatic and buccal

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32
Q

what is the blood supply of the zygomaticus major

A

facial artery

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33
Q

what is the venous drainage of the zygomaticus major

A

facial vein

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34
Q

what is the action of the zygomaticus minor

A

superior/lateral movement of mouth corners (same as zygomaticus major)

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35
Q

what is the innervaiton of the zygomaticus minor

A

CN 7 - zygomatic and buccal

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36
Q

What is the blood supply of the zygomaticus minor

A

facial artery

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37
Q

what is the venous drainage of the zygomaticus minor

A

facial vein

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38
Q

what is the action of the platysma

A

inferior movement of mouth corners - think yikes

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39
Q

what is the innervation of the platysma

A

CN 7 - cervical and mandibular

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40
Q

what is the blood supply of the platysma

A

facial artery

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41
Q

what is the venous drainge of the platysma

A

facial vein

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42
Q

what muscles does the facial vein drain

A

orbicularis oculi , orbicularis oris, zygomaticus major, zygomaticus minor, and platysma

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43
Q

what muscles do the facial artery supply

A

platysma, zygomaticus major and minor, buccinator, orbicularis oris, and the oribicularis oculi

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44
Q

what is the function of the muscles of mastification

A

movement of the mandible

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45
Q

what are the 4 muscles of mastication

A

temporalis and masseter and medial pteryhoid, and lateral pterygoid

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46
Q

the lateral pterygoid is ___ to the medial pterygoid

A

superior

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47
Q

what is the origin of the temporalis

A

temporal bone

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48
Q

what is the insertion of the temporalis

A

coronoid process of the mandible

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49
Q

what is the innveration of the temporalis

A

CN 5 branch 3 (deep temporal branch of trigeminal)

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49
Q

what is the action of the temporalis

A

to elevate and retract the mandible

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50
Q

What is the blood supply of the temporalis

A

maxillary artery

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51
Q

what is the venous drainage of the temporalis

A

deep temporal vein

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52
Q

what is the relation of the temporalis to the zygoamtic arch

A

the temporalis is deep to the zygomatic arch

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53
Q

what is the origin of the masseter

A

zygomatic arch

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54
Q

what is the insertion of the masseter

A

coronoid process and ramus of the mandible

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55
Q

what is the action of the masseter

A

to elevate the mandible and approximate (bring together) teeth

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56
Q

what is the innervation of the masseter

A

CN 5 branch 3

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57
Q

what is the blood supply of the masseter

A

maxillary artery

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58
Q

what is the venous drainage of the masseter

A

massteric vein

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59
Q

what is the origin of the medial pterygoid

A

maxillary tuberosity and lateral pterygoid plate

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60
Q

what is the insertion of the medial pterygoid

A

medial ramus and angle of the mandible

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61
Q

what is the action of the medial pterygoid

A

elevation and side to side movement of the mandible

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62
Q

what is the innervation of the medial ptergoid

A

CN 5 brnach 3, medial ptergoid branch

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63
Q

what is the blood supply to the medial pterygoid

A

maxillary artery

64
Q

What is the venous drainage of the medial pterygoid

A

pterygoid plexus

65
Q

where does the ptergoid plexus drain into

A

maxillary vein

66
Q

where does the maxillary vein drain into

A

retromandibular vein

67
Q

where does the retromandibular vein drain into

A

internal jugular vein

68
Q

what is the origin of the lateral pterygoid

A

greater wing and lateral pterygoid plate

69
Q

what is the insertion of the lateral pterygoid

A

condylar process of the mandible

70
Q

what is the action of the lateral pterygoid

A

protraction and side to side movement of mandible

71
Q

what is the innervation of the lateral pterygoid

A

CN 5 branch 3

72
Q

What is the blood supply of the lateral pterygoid

A

maxillary artery

73
Q

what is the drainage of the lateral pterygoid

A

pterygoid plexus

74
Q

what retracts the mandible

A

temporalis

75
Q

what 3 muscles elevate the mandible

A

temporalis, masseter, and the medial pterygoid

76
Q

what muscle protracts the mandible

A

lateral pterygoid

77
Q

what muscle moves the mandible side to side

A

medial and lateral pterygoid

78
Q

what are the 2 muscles of the anterior neck

A

platysma and the sternocleidomastoid (SCM)

79
Q

what is the origin of the sternocleidomastoid

A

manubrium and clavicle

80
Q

what is the insertion of the sternocleidomastoid

A

mastoid process

81
Q

what is the unilateral action of the sternocleidomastoid

A

head rotation and lateral flexion

82
Q

what is the bilateral action of the sternocleidomastoid

83
Q

what is the innervation of the sternocleidomastoid

84
Q

What is the blood supply of the sternocleidomastoid

A

superior thyroid artery

85
Q

what is the venous drainage of the sternocleidomastoid

A

internal jugular vein

86
Q

What are the muscles of the deep anterior neck

A

hyoid muscles and scalene muscles

87
Q

What are the 4 suprahyoid muscles

A

digatric, stylohyoid, mylohyoid, and geniohyoid

88
Q

What are the 4 muscles of the infrahyoid

A

omohyoid, sternohyoid, thyroihyoid, and sternothyroid

89
Q

what is the origin of the digastric muscle

A

inferior border of the mandible

90
Q

what is the insertion of the digastric muscle

A

temporal bone

91
Q

what is the action of the digastric muscle

A

elevate hyoid and depress mandible

92
Q

what is the innervation of the digastric muscle

A

CN 5 branch 3 (anterior) and CN 7 (posterior)

93
Q

what is the blood supply of the digastric muscle

A

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

94
Q

What is the venous drainage of the digastric muscle

A

internal jugular vein

95
Q

What is the origin of the stylohyoid

A

the syloid process

96
Q

What is the insertion of the stylohyoid

97
Q

What is the action of the stylohyoid

A

elevate/retract the hyoid and elevate the tongue

98
Q

What is the innervation of the stylohyoid

99
Q

What is the blood supply of the stylohyoid

A

occipital artery

100
Q

What is the venous drainge of the stylohyoid

A

internal jugular vein

101
Q

mylohyoid origin

A

mylohyoid line on the body of the mandible

102
Q

mylohyoid insertion

A

inserts onto the other mylohyoid and hyoid

103
Q

mylohyoid action

A

elevate hyoid, support tongue, depress mandible

104
Q

Innervation of mylohyoid

A

CN5 branch 3

105
Q

Mylohyoid blood supply

A

facial artery and inferior alveolar artery

106
Q

Mylohyoid venous drainage

A

internal jugular vein

107
Q

Geniohyoid origin

A

inferior mental spine (body of mandible)

108
Q

geniohyoid insertion

109
Q

Geniohyoid action

A

elevate/protrude hyoid

110
Q

Geniohyoid innervation

111
Q

Geniohyoid blood supply

A

lingual artery

112
Q

Geniohyoid venous drainage

A

internal jugular vein

113
Q

omohyoid origin

114
Q

omohyoid insertion

115
Q

omohyoid action

A

depress hyoid

116
Q

omohyoid innervation

A

ansa cervicalis

117
Q

omohyoid blood supply

A

superior and inferior thyroid

118
Q

omohyoid venous drianage

A

superior and inferior thyroid vein

119
Q

what is the ansa cervicalis

A

joinin of C1 C2 C3 that innervates infrahyoid

120
Q

sternohyoid origin

A

manubrium of sternum

121
Q

sternohyoid insertion

122
Q

stenohyoid action

A

depress hyoid

123
Q

sternhyoid innervation

A

ansa cervicalis

124
Q

sternohyoid blood supply

A

superior thyroid artery

125
Q

sternohyoid venous drainage

A

superior thyroid vein

126
Q

thyrohyoid origin

A

thyroid cartilage

127
Q

thyrohyoid insertion

128
Q

thyrhyoid action

A

depress hyoid

129
Q

thyrohyoid innervation

A

C1 - sheath of C12

130
Q

thyrohyoid blood supply

A

superior thyroid artery

131
Q

thyrohyoid venous drainage

A

superior thyroid vein

132
Q

sternothryoid origin

A

menubrium of sternum

133
Q

sternothyroid insertion

A

thyroid cartilage

134
Q

sternothyroid action

A

depress hyoid and open laryngeal inley

135
Q

sternothyroid innervation

A

ansa cervicalis

136
Q

sternothyroid blood supply

A

superior thryoid artery

137
Q

sternothyroid venous drainage

A

superior thyroid vein

138
Q

what muscles of the infrahyoid are drained by superior thyroid vein

A

all of them!
sternothyroid
thyro
sterno
omo

139
Q

what muscles are supplied by the superior thyroid artery in the infrahyoid

A

all of them
sternothyroid, thyrohyoid, sternohyoid, omohyoid

140
Q

how many scalene muscles do we have in the neck

141
Q

What is the origin of the scalene muscles

A

btw ribs 1 and 2

142
Q

wha is the insertion of the scalene muscles

A

transverse process of c1/c2 vertebrae

143
Q

what is the action of the scale muscles

A

neck flexion and rotation

144
Q

what is the innervation of the scalene muscles

145
Q

what is the blood supply of the scalene muscles

A

inferior thyroid artery

146
Q

what is the venous drainage of the scalene muscles?

A

infeior thyroid vein

147
Q

where is the stylohyoid

A

goes from upper neck to above mastoid process - above the posterior belly of the diagastric muscle

148
Q

Where is the posterior belly of the digastric muscle

A

below stylohyoid - goes from upper neck to mastoid procss

149
Q

where is the mylohyoid?

A

under the chin, more superiro than geniohyoid

150
Q

Where is geniohyoid

A

under chin, more inferior than mylohyoid

151
Q

Where is thyrohyoid

152
Q

where is sternohyoid

153
Q

where is stenothyroid

154
Q

where is omohyoid

A

goes from neck to clavicle

155
Q

where are the scalenes?

A

back of the neck

156
Q

what is the most superficial muscle on the posterior neck

157
Q

What 3 muscles are in the suboccipital triangle?

A

obliquus capitis superior, rectus capitis posterior major, obliquus capitis inferior

158
Q

what is the adjacent muscles of the suboccipital triangle?

A

rectus capitis posterior minor

159
Q

what are the functions of the suboccipital triangle

A

neck extension and rotation AND postural support

160
Q

what muscle is directly below trapezius?

A

splenius capitis

161
Q

what muscle is lateral to the splenius capitis

A

levator scapulae

162
Q

what muscle sits directly overtop of the suboccipital triangle?

A

semisinalis capitis

anat 316 (22 decks)

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