nasal cavity (respiratory tract)

Question 1

openings to nasal cavity

Answer 1

anterior nares

Question 2

what divides the left and right nasal cavity

Answer 2

nasal septum

Question 3

which cavity is superior to the nasal cavity and what separates them

Answer 3

cranial cavity, ethmoid bone

Question 4

what separates the nasal and oral cavity

Answer 4

hard palate and soft palate

Question 5

which bone forms the bridge of the nose

Answer 5

nasal

Question 6

which bone is posterior to the nasal bone

Answer 6

ethmoid

Question 7

which bone does the olfactory nerve pass through

Answer 7

ethmoid

Question 8

what bones contribute to the nasal wall and hard palate

Answer 8

maxilla and palatine

Question 9

which conchae is formed of a bone of the same name

Answer 9

inferior nasal concha

Question 10

which bone forms the superior and middle concha

Answer 10

ethmoid bone

Question 11

small bone in nose that is important for ducts on other side of nasal cavity

Answer 11

lacrimal

Question 12

what is the effect of concha on air flow

Answer 12

to create turbulent air flow which increases contact with mucosa

Question 13

what runs along the roof of the nasal cavity (not the bone)

Answer 13

olfactory epithelium

Question 14

respiratory mucosa features

Answer 14

highly vascular (helps warm air)
mucus secreting
ciliated epithelium (wafts mucus posteriorly/anteriorly)
goblet cells

Question 15

what nerve is in the olfactory epithelium and what is its function

Answer 15

olfactory nerve, senses smell

Question 16

name of areas under concha?

Answer 16

superior meatus, middle meatus, inferior meatus

Question 17

area above superior meatus

Answer 17

spheno-ethmoidal recess

Question 18

4 paranasal sinuses

Answer 18

frontal
ethmoidal
sphenoidal
maxillary

Question 19

what are the paranasal sinuses

Answer 19

air filled holes within bones around nasal cavity

Question 20

what happens to sinuses when you have a cold?

Answer 20

mucosa closes over holes and there is a build-up of pressure, causing pain

Question 21

where does the sphenoid sinus open into the nasal cavity

Answer 21

sphenoethmoidal recess

Question 22

where does the maxillary sinus open into the nasal cavity

Answer 22

semilunar hiatus

Question 23

where does the frontal sinus open into the nasal cavity

Answer 23

frontonasal sinus

Question 24

where do the ethmoidal air cells open into the nasal cavity

Answer 24

many small openings

Question 25

4 functions of nasal cavity

Answer 25

warms air (highly vascularized)
humidifies air (mucosa saturates air)
filters air (hairs in nares trap large particles, mucus traps smaller)
smell (olfactory epithelium)