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D151 > 1 - 3gem n. > Flashcards

1 - 3gem n. Flashcards

1
Q

general considerations in studying trigeminal nerve

A
  1. mixed nerve
  2. largest of the CN
  3. paired nerves
  4. nerves anastomose
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2
Q

pathway or where fibers originate?

A

posterior part of brain and spinal cord –> middle cranial fossa to form trigeminal ganglion

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3
Q

other name for trigeminal ganglion

A

gasserian ganglion/semilunar

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4
Q

where is the gasserian ganglion located

A

Meckel’s cavity in the middle cranial fossa (anterior to the pons)

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5
Q

T/F anesthesia should affect the motor root of the trigeminal nerve

A

FALSE! it should NOT!

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6
Q

motor root of the CNV originates in the ___ w/in the ____

A

motor nucleus within the pons and medulla oblongata

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7
Q

structures innervated by the motor fibers of the trigeminal nerve supply

A
  1. MoM - TIME
  2. Mylohyoid
  3. anterior belly of the digastric muscle
  4. tensor tympani
  5. tensor veli palatini
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8
Q

Sensory or motor root: constitute the central processes of ganglion cells

A

sensory

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9
Q

T/F sensory root supply the skin of the entire face and mucous membrane of entire cranial viscera and oral cavity except for the pharynx and posterior 1/3 of the tongue

A

True

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10
Q

smallest of the 3 branches of CNV

A

ophthalmic nerve

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11
Q

exit of v1

A

superior orbital fissure

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12
Q

3 main divisions of v1

A

lacrimal (smallest)
frontal (largest)
nasocilliary

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13
Q

innervates the lacrimal gland

A

lacrimal nerve

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14
Q

innervates the adjacent conjunctiva

A

lacrimal nerve of v1

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15
Q

frontal nerve of v1 branches into 2 before exiting the ___

A

supraorbital notch/foramen

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16
Q

innervates the skin of upper eyelid

A

superior orbital nerve (of frontal nerve)

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17
Q

innervates the lateral forehead

A

superior orbital nerve (of frontal nerve)

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18
Q

innervates the anterior scalp region

A

superior orbital nerve (of frontal nerve)

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19
Q

branches of frontal nerve

A

superior orbital

superior trochlear

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20
Q

innervates the medial portion of forehead

A

superior trochlear nerve (of frontal nerve)

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21
Q

innervates the part of skin of upper eyelid

A

superior trochlear nerve (of frontal nerve)

mostly by superior orbital tho

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22
Q

innervates the iris and cornea

A

long ciliary nerve

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23
Q

branches of nasocilliary nerve

A

short & long ciliary nerves
posterior & anterior ethmoid nerve
infratrochlear nerve

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24
Q

branches of anterior ethmoid

A

internal nasal and external nasal

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25
Q

posterior ethmoid enters the __

A

posterior ethmoid canal

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26
Q

supplies the frontal sinus

A

anterior ethmoid nerve

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27
Q

supplies mucous membrane inside the nose

A

internal nasal branch

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28
Q

supplies mucous membrane tip of the nose and skin over the ala

A

external nasal

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29
Q

supplies skin over the bridge of nose

A

infratrochlear nerve

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30
Q

exit of maxillary nerve

A

foramen rotundum

ro2ndum

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31
Q

small branch of maxillary nerve in the cranium

A

middle meningeal nerve

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32
Q

nerve to the dura

A

middle meningeal nerve

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33
Q

zygomatic nerve branches of v2

A

zygomaticofacial

zygomaticotemporal

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34
Q

zygomaticofacial n. passes forward on the ___ and pierces through the _____

A

lateral orbital foramen

orbicularis oculi muscle

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35
Q

leaves the orbit between the great wing of sphenoid and the zygomatic bone to enter the temporal fossa

A

zygomaticotemporal n

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36
Q

supplies skin over the prominence of the zygomatic bone

A

zygomaticofacial n

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37
Q

supplies the skin over the anterior temporal fossa region

A

zygomaticotemporal n

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38
Q

branches of v2 within the pterygopalatine fossa

A

zygomatic nerve branches
sphenopalatine ganglion
posterior superior alveolar nerve (PSAN)

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39
Q

sphenopalatine ganglion branches (of v2 within pterygopalatine fossa)

A
  1. orbital branches
  2. nasal branches
    - -nasopalatine nerve
    - -posterior superior lateral nerve
  3. palatine branches
    - -greater/anterior palatine nerve
    - -middle palatine nerve
    - -posterior palatine nerve
  4. pharyngeal branches
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40
Q

nasopalatine exits through —

A

nasopalatine foramen

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41
Q

supplies mucosa of the posterior part of nasal conchae

A

posterior superior lateral nerves

42
Q

anterior palatine nerve exits through —

A

greater palatine foramen (midd of 1st and 2nd molars)

43
Q

middle palatine nerve and posterior palatine nerve exits through

A

lesser palatine foramen

44
Q

innervates the mucous membrane of nasopharynx

A

pharyngeal branches

of sphenopalatine ganglion (v2)

45
Q

supplies the periosteum of the orbit

A

orbital branches

of sphenopalatine ganglion (v2)

46
Q

supplies the mucous membrane of posterior ethmoid cells and sphenoid sinus

A

orbital branches of sphenopalatine ganglion (v2)

posterior ethmoid nerve of nasociliary nerve (v1)

47
Q

supplies the palatine mucosa and gingiva of ANTERIOR maxillary teeth

A

nasopalatine nerve

of nasal branches of the sphenopalatine ganglion (v2)

48
Q

supplies the palatine mucosa and gingiva of the POSTERIOR maxillary teeth

A

greater/anterior palatine nerve

of sphenopalatine ganglion (v2)

49
Q

supplies the soft palate

A

middle palatine nerve

of sphenopalatine ganglion (v2)

50
Q

supplies the tonsillar area

A

posterior palatine nerve

51
Q

supplies the palatine mucosa

A

nasopalatine

greater palatine nerve

52
Q

PSAN enters the __-

A

Posterior superior alveolar canal

53
Q

innervates the maxillary molars and their gingivae except the mesiobuccal root of 6s

A

PSAN

54
Q

innervates mucouos membrane of maxillary sinus

A

PSAN

55
Q

maxillary nerve enters the infraorbital canal to be called ___ AFTER giving off PSAN branch

A

infraorbital nerve

56
Q

innervates the maxi PM and MB root of maxi 6s

A

middle superior alveolar nerve

of infraorbital nerve

57
Q

infraorbital branches (2)

A

MSAN

ASAN

58
Q

supplies maxillary anterior teeth

A

ASAN

59
Q

supplies labial gingiva of maxillary anterior teeth

A

ASAN

60
Q

supplies the mucous membrane of the anterior part of the maxillary sinus

A

ASAN

61
Q

SUPERIOR DENTAL PLEXUS

A

PSAN+MSAN+ASAN

62
Q

innervation of all maxillary teeth

A

superior dental plexus

PSAN+MSAN+ASAN

63
Q

terminal branches of v2 on the face

A

inferior palpebral branches
lateral nasal or external nasal
superior labial

64
Q

supplies skin of lower eyelid and conjunctiva

A

inferior palpebral

65
Q

supplies skin on the side of the nose

A

lateral nasal or external nasal

66
Q

supplies skin and mucous membrane of upper lip

A

superior labial

67
Q

v3 exits through

A

foramen ovale where it enters the infratemporal fossa

68
Q

v3 division

A

undivided nerve
anterior
posterior division

69
Q

branches of the undivided nerve

A

nervus spinosus/ mengingeal branch (sensory)

medial pterygoid n (motor)

70
Q

supplies the dura of the posterior cranium

A

meningeal branch/nervus spinosus

71
Q

supplies lining of mastoid cells

A

meningeal branch/nervus spinosus

72
Q

supplies medial pterygoid m

A

medial pterygoid nerve

73
Q

supplies tensor veli palatine m

A

medial pterygoid nerve

74
Q

supplies tensor tympani m

A

medial pterygoid nerve

75
Q

when the anterior division reaches the external surface of _____ it is now called ____

A

lateral pterygoid muscle

long buccal nerve/buccinator n/buccal n.

76
Q

innervates the buccinator

A

facial nerve NOT the buccinator nerve!!

77
Q

administered immediately after IAN block

A

long buccal nerve block

78
Q

supplies buccal mucosa and gingiva of all molars

A

long buccal nerve (sensory)

79
Q

supplies temporalis, masseter, lateral pterygoid m.

A

branches to the MOM (motor)

80
Q

T/F lingual nerve is located medially while the inferior alveolar nerve is at the lateral

A

true

81
Q

communicates with chorda tympani of the facial nerve for taste sensatin

A

lingual nerve

82
Q

runs anterior and medial to the inferior alveolar nerve

A

lingual nerve

83
Q

largest branch of the mandibular division

A

IAN

84
Q

IAN enters the mandibular canal through the ___

A

mandibular foramen

85
Q

forms the inferior dental plexus

A

IAN

86
Q

innervates the mandibular posterior teeth

A

inferior dental plexus

87
Q

terminal division of IAN at mental foramen

A

incisive n remaines w/in mandibular canal

mental n exits the canal through mental foramen

88
Q

branches off from the IAN before it enters the mandibular foramen

A

mylohyoid n.

89
Q

skin overlying structures innervated by the facial nerve

A

auricotemporal nerve

90
Q

parotid gland

A

auricotemporal nerve

91
Q

posterior portion of the TMJ

A

auricotemporal nerve

92
Q

skin over temporal region

A

auricotemporal nerve

93
Q

skin over helix and tragus of ear

A

auricotemporal nerve

94
Q

EAM and tympanic membrane

A

auricotemporal nerve

95
Q

anterior 2/3 of the tongue

A

lingual nerve

96
Q

mucosa and gingiva on the lingual surfaces of the mandible

A

lingual nerve

97
Q

mandibular posterior teeth

A

IAN

98
Q

mandibular anterior teeth

A

incisive nerve

99
Q

skin of chin

A

mental nerve

100
Q

skin and mucous membrane of lower lip

A

mental nerve

101
Q

anterior belly of digastric

A

mylohyoid nerve

102
Q

skin on inferior and anterior surfaces of mental protruberance

A

mylohyoid nerve

D151 (5 decks)

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