Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ENT Lectures > Nasal cavities and Paranasal sinuses > Flashcards

Nasal cavities and Paranasal sinuses Flashcards

1
Q

What are 5 functions of the nasal cavity?

A 
Acts as a patent conduit for air  to be transported to the nasopharynx
Filters air of particulate material
Humidifies air
Warms inspired air in the nasal passage
Sense of smell
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are vibrissae?

A

Small hairs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the 7 parts of the external nose (surface)?

A 
Root
Dorsum
Tip
Ala
Nostril/Nares
Septum
Philtrum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What 7 bones are involved in the nose?

A 
Frontal
Ethmoid
Nasal
Inferior nasal concha
Maxilla
Perpendicular plate of the ethmoid bone
Vomer
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the crista galli?

A

Upward part of the ethmoid bone that seperates the two hemispheres of the brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How many concha are there?

A

3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Where are the concha found?

A

Lateral wall of nasal cavities

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which concha is a also a bone?

A

Inferior concha

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

How many Le Fort fractures are there?

A

3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What can Le fort fractures disrupt?

A

Cribriform plate of ethmoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What can result from Le fort fractures?

A

Anosmia

Infection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is Anosmia?

A

Loss of smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What 2 things are involved in the nasal mucosa?

A

Nasal vestibule

Nasal cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What type of tissue is the nasal vestibule?

A

Stratified squamous eptihelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What type of tissue is in the nasal cavity?

A

Respiratory epithelium

Olfactory epithelium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is olfaction?

A

Sense of smell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What nerve is the olfactory nerve?

A

CN 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What type of nerve is olfactory?

A

Special sensory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the olfactory pathway?

A 
Receptor cells in the olfactory epithelium
Pass up through cribriform plate 
Synapse with olfactory bulb
Then neurons pass along olfactory tract
To temporal lobe and olfactory
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What is the innervation of the nasal cavity?

A

Top portion: CN V1

Bottom portion: CN V2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What bones are involved in the medial wall of the nasal cavity (septum)?

A

Perpendicular plate of ethmoid
Septal cartilage
Vomer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What bones are involved in the lateral wall of the nasal cavity?

A

Lateral cartilage
Maxilla
Palantine
S,M,I concha

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Where is the olfactory bulb in relation to the nose?

A

Above the nasal cavity

24
Q

What is the origin of the anterior ethmoidal nerve?

A

Nasociliary

CN V1

25
Q

What does the anterior ethmoidal nerve pass through?

A

Anterior ethmoidal foramen

26
Q

What is the nasopalatine nerve a branch of?

A

CN V2

27
Q

What does the nasopalatine nerve pass through?

A

Sphenopalatine foramen

28
Q

What arteries supply the lateral nasal wall?

A 
Anterior ethmidal artery
Posterior ethmoidal artery
Sphenopalatine artery
Greater palatine artery
Lateral nasal artery
29
Q

What is Kiesselbach’s (Little’s) area?

A

Site where anastomosis between the arterial contributions

30
Q

Where is Kiesselbach’s area located?

A

Anteroinferiorly on nasal septum

31
Q

What can irritation of kiesselbach’s area lead to?

A

Epistaxis

Nose bleed

32
Q

What is the name of the space below each nasal concha?

A

Meatus

33
Q

Label this diagram

A

INSERT

34
Q

What are concha often referred to as?

A

Turbinates

35
Q

What do concha do and what does this allow?

A

Causes turbulent airflow through the nasal cavity

Increases opportunity for humidifying, warming and filtering air

36
Q

How can airflow through the nose be impacted?

A

Engorgement of the nasal mucosa

37
Q

How often does the side of nasal mucosa engorgement swap?

A

Every 1-5 hours

38
Q

How many paranasal sinuses does the body have?

A

4 pairs (bilateral)

39
Q

What are the 4 paranasal sinuses called?

A

Frontal sinuses
Ethmoidal air cells
Maxillary sinuses
Sphenoid sinuses

40
Q

What lines each sinus?

A

Respiratory epithelium

41
Q

Where does the sphenoid sinus drain?

A

Sphenoethmoidal recess

42
Q

Where do the posterior ethmoidal air cells drain?

A

Superior meatus

43
Q

What drains into the semilunar hiatus of the middle meatus?

A

Frontal sinus
Maxillary sinus
Anterior ethmoidal air cells

44
Q

What drains into the ethmoidal bulla of the middle meatus?

A

Middle ethmoidal air cells

45
Q

What drains into the inferior meatus?

A

Nasolacrimal duct

46
Q

How does lacrimal fluid drain?

A

Inferomedially to the nasolacrimal duct which drains into the inferior meatus

47
Q

What is sinusitis?

A

Inflammation of the mucosa in 1 or more of the paranasal sinuses

48
Q

What are the 3 subtypes off sinusitis?

A

Acute
Sub chronic
Chronic

49
Q

What direction do the cilia of respiratory mucosa waft towards?

A

Ostia

50
Q

What can a viral URTI cause?

A

Swelling of mucosa, reducing diameter of ostia

51
Q

What can fill sinuses causing pressure to build?

A

Infected mucous

52
Q

Where can pain from sinusitis be referred?

A

Teeth

53
Q

Which sinus is predisposed to infection?

A

Maxillary

54
Q

Why is the maxillary sinus predisposed to infection?

A

Ostium of maxillary sinus is located superiorly in relation to its cavity
Cilia must work against gravity

55
Q

What is an oro-antral fistula?

A

A communication between maxillary sinus and tooth socket

ENT Lectures (14 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions