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Neurology - Sem 3 > Anatomy - Sem 3 > Flashcards

Anatomy - Sem 3 Flashcards

1
Q

Where is the hippocampus located?

What is its function?

A

Inferomedial part of the temporal lobe

Memory

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2
Q

Where is the amygdala located?

A

Anterior to the hippocampus

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3
Q

What are association fibers?

A

Connect cortical sites within the 1 cerebral hemisphere

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4
Q

What are commissural fibers?

A

Run from 1 cerebral hemisphere to the other, connect functionally related structures

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5
Q

What are projection fibers?

A

Pass between the cerebral cortex and subcortical structures such as the thalamus, striatum, brainstem, or spinal cord

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6
Q

What are examples of association fibers?

A

Superior & Inferior longitudinal fasciculus, Uncinate & Arcuate fasciculus

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7
Q

What are examples of commissural fibers?

A

Corpus callosum

Anterior commissure

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8
Q

What are examples of projection fibers?

A

Corona radiata

Internal capsule

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9
Q

What is the internal capsule found between?

A

Caudate nucleus

Thalamus

Putamen & Globus Pallidus

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10
Q

What is the function of the Broca’s area?

A

Production of language (Motor area) movements required for speech

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11
Q

What is the function of the Wernicke’s area?

A

Comprehension and understanding of written and spoken language

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12
Q

What are the 3 parts of the brainstem?

A

Midbrain

Pons

Medulla Oblongata

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13
Q

Which cranial nerve nuclei does the brainstem contain?

A

CN 3 - 12

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14
Q

What is the reticular formation?

A

Neurons in the brainstem which control consciousness, pain pereption, and respiratory and CVS

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15
Q

What are the 2 parts of the Dorsal columns?

A

Fasciulus gracilis (Medial)

Fasciculus cuneatus

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16
Q

Where does the cerebellum attach on the brainstem?

A

Pons via the cerebellar peduncles

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17
Q

What are the 5 branches of CN VII? (Top to bottom)

A

Temporal branch

Zygomatic branch

Buccal branch

Marginal Mandibular branch

Cervical branch

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18
Q

What is the function of the cerebellum?

A

Equilibrium, posture and muscle tone, and coordination of movement

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19
Q

How many hemispheres does the cerebellum have?

What are the folds called?

A

2

Folia

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20
Q

What seperates the anterior lobe of the cerebellum from the posterior lobe?

A

Primary fissure

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21
Q

What are the 4 cerebellar nuclei?

A

Dentate nucleus

Emoliform nucleus

Globose nuclei

Fastigial nuclei

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22
Q

What are the 3 layers of the cerebellar cortex?

A

Mollecular layer (Outer)

Purkinje cell layer - Middle

Granular layer - Inner

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23
Q

What is the archi-cerebellum?

A

Flocculonodular lobe & Fastigal nuclei

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24
Q

What is the paleo-cerebellum?

A

Vermis & Globose + Emboliform nuclei

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25
Q

What is the neocerebellum?

A

Cerebellar hemisphere & Dentate nuclei

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26
Q

What are the components of the basal ganglia?

A

Caudate nucleus & Putamen & Globus Pallidus

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27
Q

At what level is the cervical enlargement?

A

C4-T1

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28
Q

At what level is the lumbar enlargement?

A

L1-S3

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29
Q

What fibers are found in the dorsal nerve root?

A

Primary afferent neurons (Sensory)

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30
Q

Which fibers are found in the ventral nerve roots?

A

Carry efferent neurons (Motor)

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31
Q

How can you identify a cervical vertebrae?

A

Foramen transversarium

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32
Q

How can you identify a thoracic vertebrae?

A

Costal facets

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33
Q

How can you idenfity a lumbar vertebrae?

A

It doesnt have the foramen transversarium or costal facets

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34
Q

Where do the nerves exit the cervical vertebrae?

A

Superior to the corresponding vertebrae

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35
Q

Where do the nerves exit the Thoracic and Lumbar vertebrae leave?

A

Inferior to the corresponding vertebrae

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36
Q

What are the 2 components of the IV disc?

A

Annulus fibrosis & Nucleus pulposus

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37
Q

What movement does the anterior longitudinal ligament prevent?

A

Hyper-extension of the Vertebral column

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38
Q

What movement does the posterior longitudinal ligament prevent?

A

Hyper-flexion

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39
Q

What does the ligamentum flava join?

A

Laminae of adjacent vertebral arches

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40
Q

What does the interspinous ligament join?

A

Joins the spinous processes together

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41
Q

What movements do the atlanto-occipital joints permit?

A

Permits nodding of the head (Flexion and extension) & Sideways tilting of the head

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42
Q

What movement does the atlanto-axial joint allow?

A

Allows the head to be turned from side to side

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43
Q

What are the primary curvatures?

A

Thoracic and Sacral

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44
Q

What are the secondary curvatures?

A

Cervical and lumbar vertebrae

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45
Q

What are the 2 nerves make up the sciatic nerve?

A

Tibial nerve

Common fibular nerve

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46
Q

What muscles does the sciatic nerve pass underneath?

A

Piriformis & Gluteus maximus

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47
Q

What are the 3 layers of the meninges?

A

Dura mater

Pia mater

Arachnoid mater

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48
Q

What are the 2 parts of the Dura mater?

A

Periosteal layer

Meningeal layer

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49
Q

What sits in the hypophysial fossa?

A

Pituitary gland

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50
Q

Where do the dural venous sinuses drain into?

A

Internal Jugular Veins

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51
Q

What is the middle meningeal artery a branch of?

A

Maxillary artery

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52
Q

Where does the middle meningeal artery enter the cranium?

A

Foramen spinosum

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53
Q

Where does the middle meningeal vein run?

Where does it drain?

A

Alongside the MMA

Drains into the Pterygoid venous plexus

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54
Q

Where does the posterior meningeal artery branch from?

A

Ascending pharyngeal artery

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55
Q

What artery is the maxillary artery a branch of?

A

External carotid artery

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56
Q

What artery is the anterior meningeal artery a branch of?

A

Ethmoidal artery

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57
Q

What nerve supplies the anterior, middle, posterior cranial fossa?

A

Trigeminal nerve (CN 5)

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58
Q

Where is the Epidural space?

Is it real?

A

Between the cranium and the periosteal layer of the dura

No

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59
Q

What is the subdural space?

Is it real?

A

Between the arachnoid and dura mater

No

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60
Q

What is the sub-arachnoid space?

Is it real?

A

Underneath the arachnoid mater and pia mater

Yes, contains CSF in channels

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61
Q

What celebrates the cerebral hemispheres?

A

Falx cerebri

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62
Q

What are the 5 lobes of the brain?

A

Frontal, Parietal, Insula, Temporal lobe, Occipital lobe

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63
Q

What 2 arteries supply the cerebrum?

A

Internal carotid artery & Vertebral artery

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64
Q

What are the terminal branches of the ICA?

A

Anterior cerebral artery

Middle cerebral artery

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65
Q

Where does the internal carotid artery arise from?

Where does it enter the cranium?

A

Common carotid artery

Carotid canal

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66
Q

What is the terminal branch of the vertebral artery?

A

Posterior cerebral artery

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67
Q

Where does the vertebral artery arise from?

Where does it travel to get to the cranium?

A

Subclavian artery

Through the transverse foramina C6 - Atlas

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68
Q

Where does the vertebral artery enter the cranium?

What do they unite to form?

A

Foramen magnum

Basilar artery

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69
Q

What do the following supply?

ACA

MCA

PCA

A
  • Frontal and parietal lobe
  • Temporal parietal and frontal (Most of medial part of brain)
  • Occipital lobe & temporal lobe
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70
Q

What veins drain the brain?

A

Cerebral & Cerebellar veins

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71
Q

What creates CSF?

How much is secreted daily?

A

Choroid plexus

500mL

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72
Q

Which artery supplies the vertebrae?

A

Anterior spinal artery & Posterior spinal artery

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73
Q

Where does the anterior spinal artery arise from?

Where does the posterior spinal artery arise from?

A

Vertebral artery

Posterior inferior cerebellar artery

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74
Q

What arteries supply the lower parts of the spinal cord? (3)

A

Anterior & Posterior segmental artery

Medullary arteries

Radicular arteries

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75
Q

What is the venous drainage of the spinal cord?

A

Anterior & Posterior spinal veins

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76
Q

What is the metopic suture?

A

Where the frontal suture remains after birth, divides the frontal bones

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77
Q

What bones form the hard palate?

A

Maxillae & Palatine bones

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78
Q

What type of joint is the temperomandibular joint?

A

Synovial hinge joint

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79
Q

What goes through the cribiform plate?

A

Olfactory nerve

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80
Q

What goes through the optic canal?

A

CN II & Opthalmic arteries

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81
Q

What goes through the superior orbital fissure?

A

Opthalmic veins

CN V1

CN 3

CN 4

CN 6

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82
Q

What goes through the foramen rotundum?

A

CN V2

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83
Q

What goes through the foramen ovale?

A

CN V3

Accessory meningeal artery

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84
Q

What goes through the foramen spinosum?

A

Middle Meningeal artery & Vein

Meningeal branch of CN V3

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85
Q

What goes through the foramen lacerum?

A

Deep petrosal nerve

ICA - travels across it

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86
Q

What goes through the foramen magnum?

A

Medulla

Vertebral artery

CN 11

Spinal arteries

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87
Q

What goes through the jugular foramen?

A

CN 9

CN 10

CN 11

IJV

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88
Q

What goes through the hypoglossal canal?

A

CN 12

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89
Q

What occupies the anterior cranial fossa?

A

Frontal lobes of the brain

90
Q

What occupies the middle cranial fossa?

A

Pituitary gland, Temporal lobe etc.

91
Q

What occupies the posterior cranial fossa?

A

Cerebellum

Pons

Medulla Oblongata

Occipital lobe

92
Q

What makes up the lateral wall of the orbit?

A

Zygomatic process of frontal bone

Greater wing of sphenoid bone

Orbital surface of zygomatic bone

93
Q

What makes up the roof of the orbit?

A

Lesser wing of sphenoid bone

Orbital plate of frontal bone

94
Q

What makes up the medial wall of the orbit?

A

Sphenoid body

Orbital plate of ethmoid bone

Frontal process of maxillae

Lacrimal bone

95
Q

What makes up the floor of the orbit?

A

Orbital process of palatine bone

Orbital surface of maxillary bone

Zygomatic bone

96
Q

Which nerve stimulates the production of lacrimal fluid?

A

CN 7 - PNS

97
Q

Which nerve innervates the cornea?

A

CN V1

98
Q

Which artery supplies the retina?

Which vein supplies the retina?

A

Central artery of the retina

Retinal veins

99
Q

What are the 3 compartments in the eye?

A

Anterior chamber - Aqueous humour

Posterior chamber - Aqueous humour

Posterior compartment (Vitreous body) - Vitrous humour

100
Q

Where is the origin and insertion of the Levator Palpebri Superioris?

What is its action?

A

Lesser wing of sphenoid — Skin of superior eyelid

Elevation of the eyelid

101
Q

Where is the origin and insertion of the superior rectus muscle?

What is its action?

A

Common tendinous ring — Sclera

Elevation of eyeball

102
Q

Where is the origin and insertion of the inferior rectus muscle?

What is its action?

A

Common tendinous ring — Sclera

Depression of the eyeball

103
Q

Where is the origin and insertion of the medial rectus muscle?

What is its action?

A

Common tendinous ring — Sclera

Adduction of eyeball (Medial gaze)

104
Q

Where is the origin and insertion of the lateral rectus muscles?

What is the action?

A

Common tendinous ring — Sclera

Abduction of the eyeball (Lateral movement)

105
Q

Where is the origin and insertion of the superior oblique muscles?

What is the action?

A

Body of sphenoid — through trochlea inserts into sclera

medial rotation & moves out and down

106
Q

Where is the origin and insertion of the inferior oblique muscles?

What is the action?

A

Floor of orbit — Sclera

lateral rotation & moves out and up

107
Q

What nerve innervates the LPS, superior rectus, inferior rectus, medial rectus, and inferior oblique?

A

CN 3

108
Q

What nerve innervates the lateral rectus muscle?

A

CN 6

109
Q

What nerve innervates the superior oblique muscle?

A

CN 4

110
Q

What are the functions of the check ligaments?

A

Restricts excessive movement of the eyeballs

111
Q

Which artery supplies the eyeball and orbit?

A

Opthalmic artery

112
Q

What artery is the opthalmic artery a branch of?

A

Internal carotid artery

113
Q

What are the 2 branches of the opthalmic artery?

A

Central artery of the retina

Posterior ciliary arteries

114
Q

What main vein drains the eyeball etc?

A

Cavernous sinus

115
Q

Which 2 veins drain the eyeball?

A

Opthalmic vein & infra-orbital vein

116
Q

What bone forms the inferior nasal conchae?

What bone forms the superior and middle nasal conchae?

A

Inferior conchae bone

Ethmoidal bone

117
Q

Where is the opening of the sphenoidal sinus?

A

Spheno-ethmoidal recess

118
Q

Where does the nasolacrimal duct open into?

A

Inferior nasal meatus

119
Q

Where do the posterior and anterior ethmoidal arteries arise?

A

Opthalmic artery

120
Q

Where do the sphenopalatine artery and greater palatine artery arise?

A

Maxillary artery

121
Q

What arteries supply the nose? (4)

A

Anterior & Posterior ethmoid artery

Sphenopalatine artery

Greater palatine artery

122
Q

Which veins drains the nose? (3)

A

Submucosal venous plexus - Facial vein, Sphenopalatine veins, opthalmic vein

123
Q

What nerves innervate the nose? (4)

A

Olfactory nerve

Nasopalatine nerve

Anterior ethmoid nerve

Nasal nerves

124
Q

What are the 4 paranasal sinuses?

A

Frontal sinus

Ethmoidal sinus

Spenoidal sinus

Maxillary sinus

125
Q

What lines the paranasal sinuses?

A

Respiratory epithelium - Ciliated pseudostratified columnar epithelium

126
Q

What nerve supplies the frontal sinus?

A

Supra-orbital nerves CN V1

127
Q

What nerve innervates the ethmoidal cells?

A

Naso-ciliary nerves

128
Q

What nerve innervates the sphenoidal sinus?

A

Ethmoidal nerves

129
Q

What nerve innervates the maxillary sinuses?

A

Superior alveolar nerves - branch of maxillary nerve

130
Q

Where are the palatine tonsils found?

A

Oropharynx sides

131
Q

What nerve supplies the tensor veli palatini?

A

Medial pterygoid nerve (Branch of CN V3)

132
Q

What nerve supplies the levator veli palatini, palatoglossus, palatopharyngeus, and musculus uvulae?

A

Pharyngeal branch of CN 10

133
Q

Which muscles tense the soft palate? (3)

A

Tensor veli palatini

Levator veli palatini

Palatopharyngeus

134
Q

Which muscle elevates the posterior part of the tongue?

A

Palatoglossus

135
Q

Which muscle shortens the uvulae?

A

Musculus uvulae

136
Q

Which arteries supply the palate? (2)

A

Greater palatine artery

Lesser palatine artery

137
Q

Which vein drains the palate?

A

Tributaries of the pterygoid venous plexus

138
Q

Which nerves supply the palate?

A

Greater palatine nerve

Lesser palatine nerve - Soft palate

139
Q

Which arteries supply the ear?

A

Posterior auricular artery

Superficial temporal artery

140
Q

Which nerve supplies the auricle?

A

Great auricular nerve

Auriculotemporal nerve - Branch of CN V3

141
Q

Which nerve supplies the internal surface of the tympanic membrane?

Which nerve supplies the external surface of the TM?

A

CN 9

CN V3

142
Q

How is the eustachian tube actively opened?

A

Pulling on levator veli palatini & Tensor veli palatini

143
Q

Which nerve supplies the eustachian tube?

A

CN 9

144
Q

What is the action of tegmen tympani?

What nerve supplies it?

A

Pulls handle of malleus medially

CN V3

145
Q

What is the action of stapedius?

Which nerve innervates it?

A

Pulls stapes posteriorly

CN 7

146
Q

What is the pathway from the mouth and nose?

A

Nasopharynx — Oropharynx — Laryngopharynx — Larynx — Trache or Esophagus

147
Q

What are the 3 pharyngeal constrictors?

A

Superior, Middle, Inferior constrictor

148
Q

What is the origin and insertion of the superior constrictor?

What is the action

A

O: Pterygoid Hamulus I: Pharygeal tubercle on basilar part of occipital bone

Constriction of walls of pharynx during swallowing

149
Q

What is the origin and insertion of the middle constrictor muscle?

What is the action

A

O: Stylohyoid ligament, & Greater and lesser horns of hyoidà I: Pharyngeal raphe

Constriction of walls of pharynx

150
Q

What is the origin and insertion of the inferior constrictor muscle?

What is the action?

A

O: Oblique line of thyroid cartilage and side of cricoid cartilage I: Pharyngo-esophageal junction

Constriction of pharynx

151
Q

What nerve innervates the pharyngeal constrictors?

A

Pharyngeal branch of CN 10

152
Q

What are the 3 internal longitudinal pharyngeal muscles?

A

Palatopharyngeus

Stylopharyngeus

Salpingopharyngeus

153
Q

What is the origin and insertion of Palatopharyngeus?

What is the action?

A

O: Hard palate and palatine aponeurosis — I: Posterior border of lamina of thyroid cartilage and side of pharynx and esophagus

Elevate pharynx and larynx

154
Q

What nerve innervates Palatopharyngeus & Stylopharyngeus?

What innervates Salpingopharyngeus?

A

CN 10

CN 9

155
Q

What 4 tonsils make up waldeyers ring?

A

Tubal tonsils

Adenoid tonsils

Palatine tonsils

Lingual tonsils

156
Q

At what vertebral level is the hyoid bone?

A

C3

157
Q

What are the stylohyoid ligaments?

A

Suspend the hyoid bone from the styloid processes of the temporal bones

158
Q

At what level is the thyroid cartilage?

What level does the larynx extend to?

A

C4

C3-C6

159
Q

What is the thyrohyoid membrane?

A

Attaches the superior border and superior horns to the hyoid

160
Q

what are the 3 extrinsic laryngeal muscles?

What is their action?

A
  1. Infrahyoid muscles
  2. Suprahyoid muscles
  3. Stylopharyngeus muscles

Move the larynx as a whole

161
Q

What is the origin and insertion of the cricothryoid muscle?

What is the action?

A

Cricoid cartilate — inferior horn of thryoid cartilage

Stretches vocal ligament

162
Q

Which nerve innervates the cricothyroid muscle?

A

Superior laryngeal nerve

163
Q

What is the origin and insertion of the thryo-arytenoid muscle?

What is its action?

A

Thyroid — arytenoid surface

Relaxes vocal ligament

164
Q

What is the origin and insertion of the posterior crico-arytenoid muscle?

What is its action?

A

Cricoid cartilage — Vocal process of arytenoid cartilage

Abduction of vocal folds

165
Q

What is the origin and insertion of the lateral crico-arytenoid?

What is its action?

A

Cricoid cartilage — Arytenoid cartilage

Adduction of vocal folds

166
Q

What is the origin and insertion of the transverse and oblique arytenoids?

What is it?

A

Arytenoid cartilage — Arytenoid cartilage

Adduction of arytenoid cartilages

167
Q

What is the origin and insertion of the vocalis muscle?

What is its action?

A

Arytenoid cartilage — vocal ligament

Relaxes posterior vocal ligament & increase tension on anterior part

168
Q

What nerve innervates the thyroartenoid, posterior + Lateral + transverse + oblique arytenoids, vocalis?

A

Inferior laryngeal nerve CN 10

169
Q

What arteries supply the larynx?

Where do these arteries originate?

A

Superior and inferior laryngeal arteries

External carotid artery

170
Q

Which veins drain the laryngeal veins?

Where does the superior laryngeal vein empty?

Where does the inferior laryngeal vein empty?

A

Superior laryngeal & inferior laryngeal vein

IJV

Left brachiocephalic vein

171
Q

Which lymph nodes drain the larynx?

A

Superior deep cervical lymph nodes

Inferior deep cervical lymph nodes

172
Q

Where does CN VII leave the skull?

Where does it exit the cranium?

A

Internal acoustic meatus

Stylomastoid foramen

173
Q

Where do the facial muscles originate in the embryo?

A

Mesoderm in the 2nd pharyngeal arches

174
Q

What is the action of the occipitofrontalis muscle?

A

Elevates eyebrows and wrinkles skin on forehead

175
Q

What is the action of the orbicularis oculi?

A

Closes the eyelids

176
Q

What is the action of Corrugator supercilli?

A

Creates wrinkles above nose

177
Q

What is the action of the transverse part of nasalis?

A

Wrinkles dorsum of nose

178
Q

What is the action of the alar part of the nasali & levator labii superioris alaeque nasii?

A

Dilates anterior nasal aperture

179
Q

What is the action of the orbicularis oris?

A

Closes oral fissure, and resists blowing (Distention)

180
Q

What is the action of levator labii superioris?

A

Retract upper lip

181
Q

What is the action of zygomaticus minor?

A

Retract upper lip

182
Q

What is the action of buccinator?

A

Resists distention (Blowing up mouth)

183
Q

What is the action of zygomaticus major?

A

Allows to smile or sneer

184
Q

What is the action of levator anguli oris?

A

Widens oral fissure

185
Q

What is the action risorius & depressor anguli oris?

A

Frown

186
Q

What is the action of depressor labii inferioris?

A

retracts lips (Pouting, sadness)

187
Q

What is the action of mentalis?

A

Elevates skin of chin

188
Q

What is the action of platysma?

A

Tenses skin of inferior face and neck

189
Q

What nerve supplies sensory innervation to the face?

What nerve supplies motor innervation to the face?

A

CN 5

CN 7

190
Q

Which artery supplies the facial muscles?

Where does it originate?

A

Facial artery

External carotid artery

191
Q

What arteries supply the scalp?

A

Superficial temporal artery

Posterior auricular artery

Occipital artery

192
Q

Which vein drains the facial muscles?

Where does it drain into?

A

Facial vein

IJV

193
Q

What are the 4 papillae of the tongue?

A

Vallate papillae - V shape

Foliate papillae

Filiform papillae

Fungiform papillae - mushroom shape

194
Q

Which nerve supplies the motor innervation to the tongue muscles?

Which nerve supplies palatoglossus?

A

CN 12

CN 10

195
Q

Which nerve supplies the anterior 2/3 sensation?

Which nerve supplies posterior 1/3 of tongue sensation?

A

CN V3

CN 9

196
Q

What are the 4 extrinsic muscles of the tongue?

A

Genioglossus

Hyoglossus

Styloglossus

Palatoglossus

197
Q

What is the origin and insertion of genioglossus muscle?

What is its action?

A

Mental spine — hyoid bone

Depresses tongue

198
Q

What is the origin and insertion of the hyoglossus muscle?

What is its action?

A

Hyoid bone — lateral tongue

Depresses tongue

199
Q

What is the origin and insertion of styloglossus?

What is the action?

A

Stylohyoid ligament — Sides of tongue

Curls sides of tongue

200
Q

What is the origin and insertion of the palatoglossus?

What is its action?

A

Palatine aponeurosis — Posterolateral tongue

Elevates posterior tongue

201
Q

What are the 4 intrinsic muscles of the tongue?

A

Superior longitudinal muscle

Inferior longitudinal muscle

Transverse muscle

Vertical muscle

202
Q

What is the function of the longitudinal tongue muscles?

A

Make tongue short and thick

203
Q

What is the function of the transverse and vertical muscle?

A

Make tongue long and narrow

204
Q

Which arteries supply the tongue? (2)

Where do they originate?

A

Dorsal lingual arteries

Deep lingual arteries

External carotid artery

205
Q

Which veins drain the tongue?

Where do they finally drain into?

A

Dorsal lingual veins

Deep lingual veins

IJV

206
Q

What are the 3 salivary glands?

A

Parotid gland

Submandibular gland

Sublingual gland

207
Q

What are the 4 layers of the deep cervical fascia?

A

Investing fascial layer

Pretracheal layer

Prevertebral layer

Carotid sheath

208
Q

What are the 4 regions in the anterior triangle?

A

Submandibular triangle

Submental triangle

Carotid triangle

Muscular triangle

209
Q

What are the 2 regions of the posterior triangle?

A

Occipital triangle

Omoclavicular triangle (Subclavian)

210
Q

What are the 4 suprahyoid muscles?

A

Mylohyoid muscle

Geniohyoid muscle

Stylohyoid muscle

Digastric muscle

211
Q

What is the origin and insertion of the mylohyoid muscle?

What is its action?

What nerve innervates it?

A

Mylohyoid — body of hyoid

Elevation of hyoid

Nerve to mylohyoid from CN V3

212
Q

What is the origin and insertion of the geniohyoid?

What is its action?

What nerve innervates it?

A

Mandible — body of hyoid

Widens pharynx

CN 12

213
Q

What is the origin and insertion of the stylohyoid?

What is its action?

What nerve innervates?

A

Digastric fossa of mandible (Anterior belly) & Mastoid notch — Greater horn of hyoid

Elevates hyoid & Depresses mandible

Nerve to mylohyoid and CN 7

214
Q

What are the 4 infrahyoid muscles?

A

Sternohyoid

Omohyoid

Sternothyroid

Thyrohyoid

215
Q

What is the origin and insertion of the sternohyoid?

What is its action?

What nerve supplies it?

A

Manubrium — hyoid

Depresses hyoid

Ansa cervicalis

216
Q

What is the origin and insertion of the omohyoid?

What is its action?

What nerve innervates it?

A

Scapula — Hyoid

Depression of hyoid

Ansa cervicalis

217
Q

What is the origin and insertion of the sternothyroid?

What is the action?

What nerve innervates it?

A

Sternum

Depresses hyoid

Ansa cervicalis

218
Q

What is the origin and insertion of the thyrohyoid muscle?

What is its action?

What nerve innervates it?

A

Throid cartilage — Hyoid

Depresses hyoid

CN 12

219
Q
A
220
Q

What are the 8 branches of the external carotid artery?

A

Ascending pharyngeal

Superficial temporal

Occipital

Lingual

Maxillary

Posterior auricular

Facial

Superior thyroid

221
Q

What 2 veins join to form the external jugular vein?

A

Retromandibular vein & Posterior auricular vein

222
Q
A

Neurology - Sem 3 (15 decks)

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