Nasal Cavity & Paranasal Sinuses

Question 1

respiratory epithelium

Answer 1

Ciliated pseudostratified columnar epithelium with goblet cells

Question 2

number of nasal caviteis

Answer 2

2

Question 3

location of naries of the nasal cavities

Answer 3

inferior

Question 4

nasal cavities in relation to orbit

Answer 4

near the medial wall of the orbit

Question 5

what paranasal sinuses exist

Answer 5

Frontal, number of ethmoidal, sphenoid, and maxillary sinuses

Question 6

where do the sinuses of the face drain

Answer 6

into the nasal caivity

Question 7

Cartilages of the nasal cavities

Answer 7

large septal cartilage
2 lateral extensions from the septal cartilage(make anterior portion of the nose
2 major alar cartilage(tip of nose)
minor alar cartilages (many imbeded in modified fatty tissue

Question 8

roof of nasal cavity is up against

Answer 8

anterior cranial fossa and cribiform plate at top of bridge of nose

Question 9

roof of the nasal cavity is lined with

Answer 9

olfactory epithelium

Question 10

what makes the floor of the nasal cavity

Answer 10

maxilla and palatine

Question 11

what makes up the septum of the nose

Answer 11

anterior is the septal cartilage
posterior inferior- vomer
posterior superior- perpendicular plate of ethmoid

Question 12

roof of nasal cavity

Answer 12

nasal bone, frontal bone, ethmoid bone, sphenoid bone

Question 13

bones of lateral nasal wall

Answer 13

nasal
frontal
maxilla
inferior concha (on the maxilla)
lacrimal
ethmoid( uncinate process)
palatine (perpendicular plate)
medial pterygoid plate of sphenoid
also cartilages (vestibule and atrium space)

Question 14

superior and middle cocha come from

Answer 14

the ethmoid bone

Question 15

the spaces beneith the concha

Answer 15

meatus

Question 16

the space above the superior cocha

Answer 16

spheno-ethmoidal recess

Question 17

where is the frontal sinus found

Answer 17

within the frontal bone lateral to the midline

Question 18

where does the frontal sinus drain

Answer 18

via the frontonasal duct/canal into infundibulum via the hiatus semilunaris to enter the middle meatus of the nasal cavity anterior to ethmoidal bulla

Question 19

3 walls of the maxillary sinus

Answer 19

superior-the floor of the orbit
medial
lateral

Question 20

the opening of the maxillary sinus where it drains

Answer 20

maxillary ostium into the middle meatus at the superior edge of the sinus

Question 21

what gives the botom of the semilunar hiatus groove

Answer 21

the uncinate process

Question 22

where doe ethmoidal air cells drain

Answer 22

opening in the ethmoidal bulla

Question 23

what does the nasal cavity share borders with

Answer 23

oral cavity
orbit
anterior cranial fossae

Question 24

what does the nasal cavity share neurovascular bundle branches with

Answer 24

oral cavity

Question 25

how do they empty a large maxillary sinus infection

Answer 25

puncture inferior wall of maxillary sinus by puncturing via the inferior meatus

Question 26

what may project into the maxillary sinus

Answer 26

roots of upper teeth (Covered in mucoperiosteum)

Question 27

tooth decay effect on maxillary sinus

Answer 27

my spread into sinus

Question 28

bad extractions of teeth leads to

Answer 28

tear membrane and create a fistula between mouth and maxillary sinus(air escapes out of fistual into sinus and nasal cavity

Question 29

what is the rol of the chrisa galli

Answer 29

anchor for the superior sagital sinus

Question 30

what drains into the middle meatus

Answer 30

frontal sinus
maxillary sinus
anterior ethmoids
middle ethmoids

Question 31

what doe posterior ethmoids drain into

Answer 31

posterior meatus

Question 32

opening of the sphenoid sinus

Answer 32

superior above the superior concha

Question 33

where does the nasal lacrimal duct drain

Answer 33

inferior meatus

Question 34

what does the anterior ethmoidal branch arteries supply

Answer 34

upper anterior septum and lateral wall

Question 35

what does the posterior ethmoidal branches arteries supply

Answer 35

upper posterior septum and lateral wall

Question 36

what does the sphenopalatine branch arties suply

Answer 36

lower septum and lateral wall

Question 37

what do arterial supply of nasal cavity do

Answer 37

lots of anastomoes so bleed easily

Question 38

where lots of branching and vessels are found on the septum

Answer 38

kiesselbach area (where nose bleeds occur for nose pickers)

Question 39

venous drainage of nasal cavity occurs where

Answer 39

via similar named to arteries but drain to facial, opthalmic, or pterygoid plexus

Question 40

what do CN I nerves synapse on

Answer 40

mitral cells in olfactory bulb

Question 41

General sensory nerves of nasal cavity

Answer 41

CN V1: nasociliary N through anterior ethmoidals with external nasal brnach (tip of nose)
CN V2: infraoribtal n, Nasopalatine n, Anterior and superior alveolar nerves, posterior superior lateral nasal nn, posterior inferior lateral nn.

Question 42

where does the nasopalatine nerve terminate

Answer 42

in the oral cavity

Question 43

what provides general sensation to the paranasal sinuses

Answer 43

branches of maxillary (CN V2)

Question 44

what provides parasympa fibers to paranasal sinuses

Answer 44

greater petrosal branches (CN VII)

Question 45

what provides sympathetic fiber to paranasal sinuses

Answer 45

deep petrosal branches (T1)

Question 46

how do nerves of paranasal sinuses reach their sinus

Answer 46

on brnaches of CN V2

Question 47

what type of fibers are deep petrosal nerves

Answer 47

post synaptic, sympathetic fibers

Question 48

what type of fibers is the greater petrosal nerve

Answer 48

pre ganglionic parasympathetic

Question 49

where parasympathetics synapse and sympathetics slide through for the nasal caivty

Answer 49

pterygopalatine ganglion

Question 50

where does deep and greater petrosal nerves meet

Answer 50

in the pterygo canal

Question 51

what does the deep and greater petrosal nerves together form

Answer 51

the vitian nerve (only autonomics)