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BDS3 Head & Neck Anatomy > Cranial Nerves & Foramina > Flashcards

Cranial Nerves & Foramina Flashcards

(78 cards)

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1
Q

CN I Olfactory neuron type

A

special visceral afferent (sensory)

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2
Q

CN I olfactory central connection

A

olfactory bulb in anterior cranial fossa

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3
Q

CN I olfactory exit from skull

A

olfactory foramina in cribriform plate

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4
Q

CN I olfactory function

A

sense of smell, from receptor cells in nasal mucosa

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5
Q

CN II optic nerve neuron type

A

special somatic afferent (sensory)

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6
Q

CN II optic central connection

A

thalamus

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7
Q

CN II optic exit from skull

A

optic canal

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8
Q

CN II optic function

A

vision from the retina of the eye to the brain

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9
Q

CN III oculomotor neuron type (2)

A
  1. general somatic efferent (motor)
  2. general visceral efferent (parasympathetic motor)
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10
Q

CN III oculomotor central connection

A

midbrain

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11
Q

CN III oculomotor exit from skull

A

superior orbital fissure where it divides into superior and inferior branches

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12
Q

CN III oculomotor function (2)

A
  1. innervates levator palpebrae superioris & inferior oblique (somatic motor)
  2. innervates sphincter pupillae & ciliary muscles for pupil constriction & accommodation (visceral parasympathetic motor)
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13
Q

CN IV trochlear neuron type

A

general somatic efferent (motor)

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14
Q

CN IV trochlear central connection

A

midbrain

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15
Q

CN IV trochlear exit from skull

A

superior orbital fissure

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16
Q

CN IV trochlear function

A

innervates superior oblique muscle

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17
Q

CN V1 and V2 neuron type

A

general somatic afferent (sensory)

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18
Q

CN V3 neuron type

A

branchial motor

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19
Q

CN V trigeminal central connection

A

pons

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20
Q

CN V1 exit from skull

A

superior orbital fissure

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21
Q

CN V2 exit from skull

A

foramen rotundum

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22
Q

CN V3 exit from skull

A

foramen ovale

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23
Q

CN V1 and V2 function

A

sensory innervation to dura of anterior and middle cranial fossa, skin of face, teeth, gingiva, mucous membranes of nasal cavity, paranasal sinuses and mouth

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24
Q

CN V3 function

A

innervates muscles of mastication, anterior belly of digastric, tensor tympani and tensor veli palatini muscles

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25
CN VI abducens neuron type
general somatic efferent (motor)
26
CN VI abducens central connection
pontomedullary junction
27
CN VI abducens exit from skull
superior orbital fissure
28
CN VI abducens function
innervates lateral rectus which abducts eye
29
CN VII facial neuron type (3)
1. special visceral afferent (sensory) 2. general visceral efferent (parasympathetic motor) 3. special visceral efferent (branchial motor)
30
CN VII facial central connection
pontomedullary junction
31
CN VII facial exit from skull
internal acoustic meatus > facial canal > stylomastoid foramen
32
CN VII facial sensory function
sensation from auricle and external acoustic meatus, taste from anterior 2/3 of tongue
33
CN VII facial parasympathetic motor function
secretomotor for submandibular / sublingual glands, innervates lacrimal gland and nasal/oral cavity mucosal lining
34
CN VII facial branchial motor effect
innervates muscles of facial expression, posterior belly of digastric, stylohyoid and stapedius
35
CN VIII vestibulocochlear neuron type
special somatic afferent (sensory)
36
CN VIII vestibulocochlear central connection
pontomedullary junction
37
CN VIII vestibulocochlear exit from skull
internal acoustic meatus
38
CN VIII vestibulocochlear function
vestibular branch - sensation of equilibrium and balance cochlear branch - sensation of hearing
39
CNIX glossopharyngeal neuron type (5)
1. general somatic afferent (sensory) 2. special visceral afferent (sensory) 3. general visceral afferent (sensory) 4. general visceral efferent (parasympathetic motor) 5. special visceral efferent (branchial motor)
40
CN IX glossopharyngeal central connection
medulla oblongata
41
CN IX glossopharyngeal exit from skull
jugular foramen
42
CN IX somatic afferent sensory function
sensory input to posterior 1/3 of tongue, palatine tonsils, oropharynx
43
CN IX special visceral afferent
taste from posterior 1/3 of tongue
44
CN IX general visceral afferent function
sensory information from carotid body
45
CN IX general visceral efferent function
secretomotor for parotid gland
46
CN IX special visceral efferent
innervates stylopharyngeus, superior pharyngeal constrictor, assists in phonation and swallowing
47
CN X vagus neuron type (5)
1. general somatic afferent (sensory) 2. special visceral afferent (sensory) 3. general visceral afferent (sensory) 4. general visceral efferent (parasympathetic motor) 5. special visceral efferent (branchial motor)
48
CN X central connection
medulla oblongata
49
CN X exit from skull
jugular foramen
50
CN X general somatic afferent function
sensory information from larynx, auricle, external acoustic meatus, dura mater of posterior cranial fossa
51
CN X special visceral afferent function
taste from palate and epiglottis
52
CN X general visceral afferent function
information from aortic body, oesophagus, lungs, bronchi, heart, intestines
53
CN X general visceral efferent function
innervates smooth muscle and glands
54
CN X special visceral efferent function
innervates external laryngeal and pharyngeal muscles, responsible for gag relfex
55
CN XI accessory neuron type
general somatic efferent (motor)
56
CN XI accessory central connection
medulla oblongata
57
CN XI accessory exit from skull
jugular foramen
58
CN XI accessory function
innervates SCM, trapezius and muscles of soft palate
59
CN XII hypoglossal neuron type
general somatic efferent (motor)
60
CN XII hypoglossal central connection
medulla oblongata
61
CN XII hypoglossal exit from skull
hypoglossal canal
62
CN XII hypoglossal function
innervates all extrinsic and intrinsic muscles of the tongue except for palatoglossal muscle which is innervated by the vagus nerve
63
structures passing through supra orbital foramen
supraorbital nerve and vessels
64
structures passing through infra orbital foramen
infraorbital nerve and vessels
65
structures passing through mental foramen
mental nerve and vessels
66
structures passing through zygomaticofacial foramen
zygomaticofacial nerve
67
structures passing through foramina of cribriform plate
olfactory nerves CN I
68
structures passing through optic canal
optic nerve CN II ophthalmic artery
69
structures passing through superior orbital fissure
oculomotor CN III trochlear CN III ophthalmic division CN V abducens CN VI superior ophthalmic vein
70
structures passing through internal acoustic meatus
facial nerve CN VII vestibulocochlear CN VIII
71
structures passing through hypoglossal canal
hypoglossal CN XII
72
structures passing through foramen
maxillary division CN V
73
structures passing through foramen ovale
mandibular division CN V
74
structures passing through carotid canal
internal carotid artery
75
structures passing through foramen spinosum
middle meningeal artery
76
structures passing through jugular foramen
internal jugular vein glossopharyngeal CN IX vagus CN X accessory CN XI
77
structures passing through foramen magnum
spinal cord vertebral arteries roots of spinal accessory
78
structures passing through stylomastoid foramen
facial CN VII

BDS3 Head & Neck Anatomy (25 decks)

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