nasal cavity

Question 1

what are the bones that form the roof of the nasal cavity?

Answer 1

nasal bone
frontal bone
cribiform plate of ethmoid bone
body of sphenoid bone

Question 2

what is the floor of the nasal cavity formed by?

Answer 2

palatine process of maxilla
horizontal plate of palatine bone

these 2 together form hard palate

Question 3

the medial wall or nasal septum of the nasal cavity is formed by?

Answer 3

perpendicular plate of ethmoid bone
vomer
septal cartilage

PVS

Question 4

the lateral wall of the nasal cavity is formed by what 7 bones?

Answer 4

Nasal bone
Frontal process of maxilla
Lacrimal bone
Perpendicular plate of palatine
r
Inferior nasal concha 
Medial pterygoid plate of sphenoid 
Ethmoid bone 

NFL PrIME

Question 5

what are the 2 functions of the nasal concha?

Answer 5

1. increase surface area

2. increase air turbulence

Question 6

the sphenoethmoidal recess receives the opening of what?

Answer 6

the sphenoid sinus

Question 7

the superior meatus receives the opening of the?

Answer 7

posterior ethmoidal cells

Question 8

the middle meatus receives which openings?

Answer 8

Maxillary sinus
Middle ethmoidal cells
Anterior ethmoidal cells
Frontal sinus

MMA Fight

Question 9

what is the name of a rounded projection into the middle meatus?

Answer 9

ethmoidal bulla

Question 10

a curved slit lying below the ethmoidal bulla within the middle meatus is called?

Answer 10

hiatus semilunaris

Question 11

the inferior meatus receives the opening of?

Answer 11

the nasolacrimal duct

Question 12

what does the nasolacrimal duct connect?

Answer 12

the lacrimal sac of the orbit to the nasal cavity- it drains extra tears

Question 13

what are the 3 regions of the nasal cavity?

Answer 13

nasal vestibule
respiratory region
olfactory region

Question 14

the nasal vestibule contains what?

Answer 14

hair, sebaceous glands and sweat glands- its the area of the nose you pick

Question 15

the olfactory region contains fibers of what?

Answer 15

the olfactory nerve CN I which pass through the cribiform plate

Question 16

what is the special sensory innervation of the nasal cavity?

Answer 16

olfactory nerve CN I

Question 17

what is the general sensory innervation

Answer 17

branches of maxillary and opthalmic divisions of trigeminal nerve CN V

Question 18

what is the autonomic innervation (sympathetic and parasympathetic) of the nasal cavity?

Answer 18

pterygopalatine ganglion

Question 19

the primary blood supply to the nasal cavity is from?

Answer 19

sphenopalatine artery

Question 20

there is also blood supply to the nasal cavity from 2 other branches?

Answer 20

sphenopalatine branch of maxillary artery

anterior ethmoidal branch of opthalmic artery

Question 21

lymph nodes from the nasal cavity drain into?

Answer 21

deep cervical nodes

Question 22

what are the 4 sinuses of the nose?

Answer 22

frontal
maxillary
sphenoidal
ethmoidal

Question 23

the frontal sinus opens into the?

Answer 23

hiatus semilunaris of the middle meatus via the frontonasal duct

Question 24

which is the largest of the paranasal sinuses and the only one present at birth?

Answer 24

maxillary sinus

Question 25

which sinus is most frequently prone to infection due to poor drainage?

Answer 25

maxillary sinus

Question 26

when someone has pituitary cancer surgery it is done through which sinus?

Answer 26

sphenoid sinus

Question 27

what are the 3 types of ethmoidal cells in the ethmoidal sinus?

Answer 27

posterior, middle and anterior ethmoidal cells

Question 28

an infection of the nasal cavity can spread to many places, what are the 6 places they spread?

Answer 28

1. nasopharynx- most common- acute pharyngitis 2. middle ear- otitis media 3. paranasal sinuses- sinusitis 4. lacrimal apparatus and conjunctiva- conjunctivitis 5. anterior cranial fossa- meningitis, brain abscess 6. mastoid air cells via middle ear- mastoiditis- dangerous bacteria into brain

Question 29

what is naegleria fowleri?

Answer 29

a brain eating amoeba

Question 30

CSF fluid dripping through the nose indicates?

Answer 30

damage to the cribiform plate

Question 31

halo sign indicates?

Answer 31

fluid dripping from nose- red haloed in gray indicates CSF