nasal anatomy 1

Question 1

what are some functions of the nose?

Answer 1

respiration
filtration
humidification
olfaction
reception of sinus and eye secretions

Question 2

what type of mucose is present in the nose?

Answer 2

columnar ciliated

there is a squamo columnar junction

Question 3

how much of the nose is “bony”

Answer 3

1/3

Question 4

how much of the nose is “cartilaginous”?

Answer 4

2/3

Question 5

what are the nasal bones?

Answer 5

frontal processes of maxillae

nasal part of frontal bones

Question 6

what are the 3 different cartilages in the nose?

Answer 6

lateral x 2
septal
alar x 2

Question 7

what is the anatomical name for the nostril?

Answer 7

anterior naris

Question 8

what is the midline partition of the nose?

Answer 8

septal cartilage - which is a perpendicular plate of the ethmoid vomer

Question 9

what is a risk of the nasal septum becoming deviated?

Answer 9

septal haematoma

Question 10

what are the nasal turbinates?

Answer 10

Turbinates are two spongy curled bones that protrude into the nasal passages.

Question 11

what are the 4 pairs of turbinates?

Answer 11

superior
middle
inferior
meati

Question 12

what part of the nose do the turbinates form?

Answer 12

the lateral walls

Question 13

what forms the roof of the nose?

Answer 13

cribriform plate

Question 14

what forms the floor of the nose?

Answer 14

hard palate

Question 15

what lines the nasopharynx?

Answer 15

muco ciliary lining

Question 16

what are the boundaries of the nasopharynx?

Answer 16

choana
sphenoid sinuses
prevertebral fascia and muscle
soft palate

Question 17

what are some imprtant contents of the nasopharynx?

Answer 17

eustachian openings

adenoids

Question 18

what arteries supply the nose?

Answer 18

sphenopalatine artery
greater palatine artery
acending labial artery
ethmoid arteries

Question 19

where is the capillary plexus located?

Answer 19

mucosal lining of septum

Question 20

clinical term for a nosebleed?

Answer 20

epistaxis

Question 21

what nerves supply the nose?

Answer 21

olfactory nerve
infraorbital nerve (branch of 5th cranial)

Question 22

what may happen as a result of trauma to the olfactory nerve?

Answer 22

hyposmia

anosmia

Question 23

what can happen as a result of damage to the 5th cranial nerve?

Answer 23

paraesthesia

Question 24

what are sinuses filled with?

Answer 24

air

Question 25

what are sinuses lined with?

Answer 25

muco-ciliary lining which is continuous with the nose

Question 26

name 4 sinuses in the head

Answer 26

frontal sinus
ethmoid sinus x2
sphenoidal sinus
maxillary sinus x2

Question 27

where does the frontonasal duct drain to?

Answer 27

middle meatus

Question 28

where do the posterior ethmoids drain to?

Answer 28

superior meatus

Question 29

where do the middle/anterior ethmoids drain to

Answer 29

middle meatus

Question 30

where does the maxillary sinus drain to?

Answer 30

middle meatus

Question 31

where does the nasolacrimal duct drain to?

Answer 31

inferior meatus

Question 32

what pathways do the nasal sinuses drain by?

Answer 32

natural mucociliary pathways

Question 33

what is an important relation of the frontal sinus?

Answer 33

anterior cranial fossa

Question 34

what is an important relation of the ethmoid sinuses?

Answer 34

anterior cranial fossa (cribiform plate)

Question 35

what are some important relations of the maxillary sinuses?

Answer 35

orbits

oral cavity/teeth

Question 36

what are some important relations of the sphenoid sinuses?

Answer 36

optic nerve
ICA
pituitary gland