nose sinuses :)

Question 1

what does the nose do

Answer 1

filter warm and moisten

Question 2

what does the nose contain

Answer 2

specialised olfactory epithelium

Question 3

what are the nasal cavitities separated by

Answer 3

nasal septum

Question 4

where are the nasal cavities found

Answer 4

above the hard palate

Question 5

what are the nasal cavities

Answer 5

anterior nasal aperatures

posterior nasal aperatures

Question 6

what makes up the nasal cavity roof

Answer 6

anterior - nasal bone
intermediate - ethmoid bone/cribriform plate
posterior - anterior part of sphenoid bone

Question 7

what is found in the sphenoid bone

Answer 7

sphenoid air sinsus

Question 8

what is the floor of the nasal cavity formed by

Answer 8

maxilla and palatine bone

Question 9

what is the nasal septum

Answer 9

medial wall of NC

Question 10

what is the nasal septum formed from (image in notes)

Answer 10

perpendicular plate of ethmoid bone
vomer bone
septal cartilage

then:
crest of maxillary one
crest of palatine bone

Question 11

what is in the nasal cavity of the lateral wall

Answer 11

nasal conche (sup, midd, inf)
nasal meatuses (spaces inferior to the conchae)

Question 12

nasal conceh

Answer 12

curved bones projecting from lateral wall of nasal cavity

Question 13

epithlium in the NC

Answer 13

respiratory muscosa (ie ciliated columnar epithelium with mucus )
olfactory epithelium ( in roof of oral cavity proper down to superior cochae)

Question 14

artieries of blood supply to NC

Answer 14

opthalmic artery
maxillary artery
facial artery

Question 15

ophthalmic artery

Answer 15

supplied by anterior and posterior ethmoidal branch

supply upper and front parts of lateral wall and septum, a

Question 16

what supplies the ethmoidal air sinuses

Answer 16

ophthalmic artery

Question 17

maxillary artyer

Answer 17

supplied by sphenopalatine artery
supplies
posterior part of lateral wall and septum

Question 18

facial artery

Answer 18

supplied by septal branch of superior labial artery

supplies inferior part of septim

Question 19

what are sinuses linedby

Answer 19

respiratory mucosa

Question 20

paranasal air sinuses

Answer 20

frontal
maxillary
ethmoidal
sphenoid

Question 21

what supplies the lining of the maxillary air sinus

Answer 21

superior alveolar nerve

- also supplies the maxillary dentiton (referred pain)

Question 22

what may happen during extraction of upper 2/3 molars

Answer 22

roots may be in sinus, expose sinus

food particulates may enter, chronic sinus infection

Question 23

where does the maxillary sinus drain into

Answer 23

meatus through ostium

found very high in the sinus

Question 24

what drains the sphenoid Ari sinus

Answer 24

superior meatus

via the sphenoethmoidal recess

Question 25

what drains into the inferior meatus

Answer 25

tears from eye

opening for nasolacrimal duct, into NC to the back and then swallwed

Question 26

what drains into the middle meatus

Answer 26

maxillary sinus and frontal sinus

infundibulum drains the frontal air sinus draining into the hiatus semilunaris