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Flashcards in nose and sinus anatomy Deck (27):
1

what is the side of the nose called?

ala

2

what is the bit between the nostrils called?

septum

3

bones of the nasal cavities?

nasal bone
vomer
maxilla
inferior nasal conchae
perpendicular plate of ethmoid bone

4

what wall of the nasal cavity do these make?

conchae, nasal bone, maxilla, palantine bone, pterygoid plate of spehnoid

lateral wall

5

what wall of the nasal cavity do these make?

septal cartilage, vomer
perpendicular plate of ethmoid?

medial

6

what type of mucosa is at the very front on the nose//

karatinised stratified squamous epthelium

7

what type of mucosa makes up the middle part and posterior inferior end of nasal cavity?

resp epthelium

8

what type of mucosa is in the most posterior and superior corner of nasal cavity?

olfactory epthithelium

9

where does the olfactory tract end?

in temporal bone

10

what nerve supplies sensory to the nasal cavity?

trigeminal (CN V)- opthalamic division top half via anterior/posterior ethmoidal branches of nasociliary nerve
and maxillary bottom half via nasopalantine and greater palantine nerves

11

opthalmic artery branches from?

internal carotids

12

facial and maxillary artery branch from?

external carotis

13

describe blood supply to nasal cavities?

opthalamic artery via anterior and posterior ethmoidal arteries

maxillary artery via sphenopalatine and greater palatine arteries

facial artery via lateral nasal branch of facial or septal branch of superior labial artery

14

what is Kiesselbachs (little's) area?

an arterial anastomosis on nasal septum

common site for nosebleeds

15

how many conchae are there?

3-superior, middle, inferior

16

what are the meatuses?

spaces underneath the conchae-superior, middle and inferior

17

what is the sphenoethmoidal recess?

a space behind the superior conchae

18

name the paranasal sinuses?

frontal x2
maxillary x2
ethmoidal air cells x2
sphenoidal (1 or 2)

19

where does the frontal sinus drain to?

middle meatus

20

where does maxillary sinus drain to?

middle meatus

21

where do the ethmoidal air cells drain to?

superior and middle meatuses

22

where does the sphenoidal sinus drain to?

sphenoethmoidal recess

23

what is lacrimal fluid?

tears

24

what does the lacrimal gland produce?

lacrimal fluid -tears

25

where does lacrimal fluid drain to?

nasolacrimal duct then to INFERIOR meatus

26

which sinus is predisposed to inflammation?

maxillary

27

can maxillary sinusitis present as toothache?

yes