Nasal Cavity, Paranasal Sinuses, Pterygopalatine Fossa

Question 1

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

Answer 1

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

Question 2

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

Answer 2

upper 1/3rd ; olfactory receptor neurons

Question 3

there is NO nasal mucosa in the

Answer 3

nasal vestibule

Question 4

where is the opening o the nasolacrimal duct

Answer 4

inferior meatus

Question 5

what 4 arteries supply the nasal cavity

Answer 5

sphenopalatine artery

anterior and posterior ethmoidal arteries

greater palatine artery

superior labial artery

Question 6

the sphenopalatine artery is a branch of the

Answer 6

maxillary artery

Question 7

the anterior and posterior ethmoidal arteries are a branch of the

Answer 7

ophthalmic artery

Question 8

the greater palatine artery is a branch of the

Answer 8

maxillary artery

Question 9

the superior labial artery is a branch of the

Answer 9

facial artery

Question 10

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

Answer 10

Kiesselbach’s area

Question 11

what nerve of the nasal cavity is involved with smell

Answer 11

Olfactory nerves - CN I

Question 12

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

Answer 12

ophthalmic nerve - CN V1

Question 13

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

Answer 13

maxillary nerve - CN V2

Question 14

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

Answer 14

nasopalatine nerve

Question 15

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

Answer 15

greater palatine nerve
posterior lateral nasal nerves

Question 16

what nerve carries special sensory only

Answer 16

olfactory nerve - CN I

Question 17

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

Answer 17

in the olfactory epithelium of the nasal cavity

Question 18

Olfactory cilia are located at the _____ ends of neurons

Answer 18

apical

Question 19

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

Answer 19

olfactory bulb

Question 20

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

Answer 20

olfactory bulb

Question 21

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

Answer 21

thalamus ; piriform cortex

Question 22

the olfactory nerve has NO

Answer 22

3rd order neurons

Question 23

innervation of the frontal sinuses

Answer 23

supraorbital nerve - CN V1

Question 24

innervation of the ethmoidal sinuses

Answer 24

Anterior and posterior ethmoidal nerves - CN V1

Question 25

innervation of the sphenoid sinuses

Answer 25

Posterior ethmoidal N - CN V1

Question 26

innervation of the maxillary sinuses

Answer 26

Superior alveolar branches - CN V2

Question 27

Symptoms of sinusitis (or rhinitis) include

Answer 27

inflamed nasal mucosa: difficulty breathing and smelling Pain in the maxillary teeth

Question 28

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

Answer 28

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

Question 29

contents of the pterygopalatine fossa:

Answer 29

CN V2 pterygopalatine ganglion autonomic nerve fibers maxillary artery

Question 30

maxillary division of CN V carries _____ only

Answer 30

sensory

Question 31

maxillary division of CN V gives off meningeal branches to supply

Answer 31

dura mater

Question 32

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

Answer 32

foramen rotundum

Question 33

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

Answer 33

pterygopalatine

Question 34

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

Answer 34

posterior ; posterior

Question 35

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

Answer 35

soft palate ; uvula ; palatine tonsil

Question 36

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

Answer 36

nasal septum ; hard palate ; anterior ; canines ; incisors

Question 37

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

Answer 37

lateral

Question 38

The pharyngeal nerve supplies the

Answer 38

nasopharynx

Question 39

The zygomatic nerve exits via ___________ to enter the _______

Answer 39

inferior orbital fissure ; orbit

Question 40

the zygomaticofacial nerve supplies the

Answer 40

prominence of cheek

Question 41

the zygomaticotemporal nerve supplies the

Answer 41

anterior temple

Question 42

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

Answer 42

buccal ; maxillary ; maxillary

Question 43

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

Answer 43

maxillary ; buccal ; mesiobuccal

Question 44

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

Answer 44

maxillary ; buccal

Question 45

Repairing a deep laceration of the hard palate mucosa close to the second premolar Which nerve will need to be blocked?

Answer 45

greater palatine nerve

Question 46

Repairing a deep laceration of the hard palate mucosa close to the second premolar Which foramen will be targeted for anesthesia placement?

Answer 46

Greater palatine foramen

Question 47

A greater palatine nerve block is used for anesthetizing:

Answer 47

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

Question 48

Repairing a deep laceration of the hard palate mucosa just posterior to the 2nd incisor Which nerve will need to be blocked?

Answer 48

Nasopalatine nerve

Question 49

Repairing a deep laceration of the hard palate mucosa just posterior to the 2nd incisor Which foramen will be targeted for anesthesia placement?

Answer 49

Incisive foramen

Question 50

Nasopalatine nerve block is used for anesthetizing:

Answer 50

Palatal gingiva of incisors and canines Palatal mucosa of the hard palate

Question 51

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

Answer 51

both sides

Question 52

Preparing for a dental filling in the second molar Which nerve will need to be blocked?

Answer 52

Posterior superior alveolar nerve

Question 53

Preparing for a dental filling in the second molar Which foramen will be targeted for anesthesia placement?

Answer 53

Posterior superior alveolar foramina

Question 54

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

Answer 54

Maxillary ; Buccal ; Maxillary

Question 55

Preparing for a dental filling in the first premolar Which nerve will need to be blocked?

Answer 55

Middle superior alveolar nerve

Question 56

Preparing for a dental filling in the first premolar Which foramen will be targeted for anesthesia placement?

Answer 56

Aiming for the roots of premolars

Question 57

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

Answer 57

maxillary ; Mesiobuccal ; buccal; maxillary

Question 58

Preparing for a dental filling in the canine Which nerve will need to be blocked?

Answer 58

Anterior superior alveolar nerve

Question 59

Preparing for a dental filling in the canine Which foramen will be targeted for anesthesia placement?

Answer 59

Aiming for the roots of canines and incisors

Question 60

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

Answer 60

Maxillary ; buccal ; Maxillary

Question 61

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?

Answer 61

infraorbital nerve

Question 62

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?

Answer 62

Infraorbital foramen

Question 63

An infraorbital Nerve Block is used for anesthetizing what ASA innervated structures: _______ incisors, canines, ______ gingiva, _______ sinus

Answer 63

Maxillary ; buccal ; Maxillary

Question 64

An infraorbital Nerve Block is used for anesthetizing what MSA innervated structures: ______ premolars, _______ root of first molar, ______ gingiva, and _______ sinus mucosa

Answer 64

Maxillary ; Mesiobuccal ; Buccal ; maxillary

Question 65

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

Answer 65

Lower ; upper ; medial

Question 66

the pterygopalatine ganglion is a ______ ganglion

Answer 66

PS

Question 67

Fibers entering pterygopalatine ganglion include:

Answer 67

Sensory branches from CN V2 Nerve of the pterygoid canal (Vidian N) Deep petrosal N Greater petrosal N

Question 68

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

Answer 68

PostGS

Question 69

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

Answer 69

PreGPS

Question 70

The greater petrosal nerve PreGPS fibers synapse at the

Answer 70

pterygopalatine ganglion

Question 71

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

Answer 71

CN V2 ; zygomatic

Question 72

The infraorbital artery divides into what 2 arteries

Answer 72

Middle superior alveolar artery Anterior superior alveolar artery

Question 73

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

Answer 73

Posterior lateral nasal branches Posterior septal branches

Question 74

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

Answer 74

superior ; auditory ; middle