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809 - Exam Block 3 > Nasal Cavity, Paranasal Sinuses, Pterygopalatine Fossa > Flashcards

Nasal Cavity, Paranasal Sinuses, Pterygopalatine Fossa Flashcards

1
Q

Where is the respiratory area of the nasal cavity and what does it do?

A

lower 2/3rd ; warms/moistens air passing through

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2
Q

where is the olfactory area of the nasal cavity and what does it contain?

A

upper 1/3rd ; olfactory receptor neurons

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3
Q

there is NO nasal mucosa in the

A

nasal vestibule

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4
Q

where is the opening o the nasolacrimal duct

A

inferior meatus

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5
Q

what 4 arteries supply the nasal cavity

A

sphenopalatine artery

anterior and posterior ethmoidal arteries

greater palatine artery

superior labial artery

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6
Q

the sphenopalatine artery is a branch of the

A

maxillary artery

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7
Q

the anterior and posterior ethmoidal arteries are a branch of the

A

ophthalmic artery

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8
Q

the greater palatine artery is a branch of the

A

maxillary artery

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9
Q

the superior labial artery is a branch of the

A

facial artery

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10
Q

What area is part of anterior nasal septum where all these arteries anastomose which is a common site of epistaxis (nosebleeds)

A

Kiesselbach’s area

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11
Q

what nerve of the nasal cavity is involved with smell

A

Olfactory nerves - CN I

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12
Q

what nerve of the nasal cavity is involved with anterior and posterior ethmoidal nerves

A

ophthalmic nerve - CN V1

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13
Q

what nerve of the nasal cavity is involved with its primary innervation

A

maxillary nerve - CN V2

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14
Q

what nerve of the nasal cavity is involved with innervating the septum

A

nasopalatine nerve

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15
Q

what 2 nerves of the nasal cavity is involved with innervating the lateral nasal walls

A

greater palatine nerve
posterior lateral nasal nerves

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16
Q

what nerve carries special sensory only

A

olfactory nerve - CN I

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17
Q

the 1st order CBs of the olfactory nerve - CN I are located where

A

in the olfactory epithelium of the nasal cavity

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18
Q

Olfactory cilia are located at the _____ ends of neurons

A

apical

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19
Q

The 1st order cell bodies of CN I synapse on 2nd order neurons in the

A

olfactory bulb

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20
Q

Olfactory nerve fibers synapse with mitral cells (specialized neurons) in the

A

olfactory bulb

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21
Q

Most 2nd order fibers of CN I bypass the _____ and project to the _______

A

thalamus ; piriform cortex

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22
Q

the olfactory nerve has NO

A

3rd order neurons

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23
Q

innervation of the frontal sinuses

A

supraorbital nerve - CN V1

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24
Q

innervation of the ethmoidal sinuses

A

Anterior and posterior ethmoidal nerves - CN V1

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25
Q

innervation of the sphenoid sinuses

A

Posterior ethmoidal N - CN V1

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26
Q

innervation of the maxillary sinuses

A

Superior alveolar branches - CN V2

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27
Q

Symptoms of sinusitis (or rhinitis) include

A

inflamed nasal mucosa: difficulty breathing and smelling

Pain in the maxillary teeth

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28
Q

From lateral to medial, how are the structures of the pterygopalatine fossa arranged?

A

ITF - pterygomaxillary fissure - sphenopalatine foramen - lateral nasal wall - nasal cavity - nasal septum

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29
Q

contents of the pterygopalatine fossa:

A

CN V2
pterygopalatine ganglion
autonomic nerve fibers
maxillary artery

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30
Q

maxillary division of CN V carries _____ only

31
Q

maxillary division of CN V gives off meningeal branches to supply

A

dura mater

32
Q

maxillary division of CN V exits the middle cranial fossa through the

A

foramen rotundum

33
Q

Maxillary division of CN V has ganglionic branches that suspend ______ ganglion

A

pterygopalatine

34
Q

The greater palatine nerve supplies the palatal mucosa of hard palate _______ to maxillary canines and the palatal gingiva _______ to maxillary canines

A

posterior ; posterior

35
Q

The lesser palatine nerve supplies the palatal mucosa of ______ and the mucosa of _____ and ______

A

soft palate ; uvula ; palatine tonsil

36
Q

The nasopalatine nerve supplies the mucosa of _______ , palatal mucosa of ________
(______ to maxillary premolars), and the palatal gingiva of maxillary _______ and _______

A

nasal septum ; hard palate ; anterior ; canines ; incisors

37
Q

The posterior lateral nasal nerves supply the mucous membranes of ______ wall of nasal cavity

38
Q

The pharyngeal nerve supplies the

A

nasopharynx

39
Q

The zygomatic nerve exits via ___________ to enter the _______

A

inferior orbital fissure ; orbit

40
Q

the zygomaticofacial nerve supplies the

A

prominence of cheek

41
Q

the zygomaticotemporal nerve supplies the

A

anterior temple

42
Q

The posterior superior alveolar nerve supplies the ______ gingiva, ______ sinus mucosa, and the _______ molars

A

buccal ; maxillary ; maxillary

43
Q

The middle superior alveolar nerve supplies the ______ sinus, ______ gingiva, ________ root of first molar, and premolars

A

maxillary ; buccal ; mesiobuccal

44
Q

The anterior superior alveolar nerve supplies the _____ sinus, _____ gingiva, canines, and incisors

A

maxillary ; buccal

45
Q

Repairing a deep laceration of the hard palate mucosa close to the second premolar

Which nerve will need to be blocked?

A

greater palatine nerve

46
Q

Repairing a deep laceration of the hard palate mucosa close to the second premolar

Which foramen will be targeted for anesthesia placement?

A

Greater palatine foramen

47
Q

A greater palatine nerve block is used for anesthetizing:

A

Palatal (lingual) gingiva and palatal mucosa posterior to maxillary canines

48
Q

Repairing a deep laceration of the hard palate mucosa just posterior to the 2nd incisor

Which nerve will need to be blocked?

A

Nasopalatine nerve

49
Q

Repairing a deep laceration of the hard palate mucosa just posterior to the 2nd incisor

Which foramen will be targeted for anesthesia placement?

A

Incisive foramen

50
Q

Nasopalatine nerve block is used for anesthetizing:

A

Palatal gingiva of incisors and canines

Palatal mucosa of the hard palate

51
Q

Since both left and right nasopalatine nerves pass through the incisive foramen in close proximity, one injection anesthetizes

A

both sides

52
Q

Preparing for a dental filling in the second molar

Which nerve will need to be blocked?

A

Posterior superior alveolar nerve

53
Q

Preparing for a dental filling in the second molar

Which foramen will be targeted for anesthesia placement?

A

Posterior superior alveolar foramina

54
Q

A posterior superior alveolar nerve block is used for anesthetizing: _____ molars, ______ gingiva, _____ sinus mucosa

A

Maxillary ; Buccal ; Maxillary

55
Q

Preparing for a dental filling in the first premolar

Which nerve will need to be blocked?

A

Middle superior alveolar nerve

56
Q

Preparing for a dental filling in the first premolar

Which foramen will be targeted for anesthesia placement?

A

Aiming for the roots of premolars

57
Q

A middle superior alveolar nerve block is used for anesthetizing: _______ premolars, _______ root of first molar, ______ gingiva, ______ sinus mucosa

A

maxillary ; Mesiobuccal ; buccal; maxillary

58
Q

Preparing for a dental filling in the canine

Which nerve will need to be blocked?

A

Anterior superior alveolar nerve

59
Q

Preparing for a dental filling in the canine

Which foramen will be targeted for anesthesia placement?

A

Aiming for the roots of canines and incisors

60
Q

An anterior superior alveolar nerve block is used for anesthetizing: ______ incisors and canines, _____ gingiva, and _______ sinus

A

Maxillary ; buccal ; Maxillary

61
Q

The dentist that you are shadowing has numbed the right anterior teeth, upper lip area going up to the lower right nostril

Which nerve has been blocked?

A

infraorbital nerve

62
Q

The dentist that you are shadowing has numbed the right anterior teeth, upper lip area going up to the lower right nostril

Which foramen was targeted for anesthesia placement?

A

Infraorbital foramen

63
Q

An infraorbital Nerve Block is used for anesthetizing what ASA innervated structures:

_______ incisors, canines, ______ gingiva, _______ sinus

A

Maxillary ; buccal ; Maxillary

64
Q

An infraorbital Nerve Block is used for anesthetizing what MSA innervated structures:

______ premolars, _______ root of first molar, ______ gingiva, and _______ sinus mucosa

A

Maxillary ; Mesiobuccal ; Buccal ; maxillary

65
Q

An infraorbital Nerve Block is used for anesthetizing the: _____ eyelid, ______ lip, and ______ cheek region

A

Lower ; upper ; medial

66
Q

the pterygopalatine ganglion is a ______ ganglion

67
Q

Fibers entering pterygopalatine
ganglion include:

A

Sensory branches from CN V2

Nerve of the pterygoid canal
(Vidian N)

Deep petrosal N

Greater petrosal N

68
Q

The deep petrosal N has what kind of fibers from the internal carotid plexus

69
Q

The greater petrosal N has what kind of fibers from CN VII

70
Q

The greater petrosal nerve PreGPS fibers synapse at the

A

pterygopalatine ganglion

71
Q

PostGPS from pterygopalatine ganglion “hitch-a-ride” on _____ to the _____ nerve

A

CN V2 ; zygomatic

72
Q

The infraorbital artery divides into what 2 arteries

A

Middle superior alveolar artery

Anterior superior alveolar artery

73
Q

The sphenopalatine artery at the posterior end of the superior meatus divides into what 2 branches

A

Posterior lateral nasal branches

Posterior septal branches

74
Q

The artery of the pterygoid canal supplies the _____ pharynx, ______ tube, and ______ ear

A

superior ; auditory ; middle

809 - Exam Block 3 (8 decks)

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