Brainscape's Knowledge GenomeTM

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


See full index

NE Exam 1 > Nasal Cavity And Pterygopalatine Fossa > Flashcards

Nasal Cavity And Pterygopalatine Fossa Flashcards

1
Q

What are the bony parts of the nose?

A

Nasal bones, frontal process of maxilla, nasal part of frontal bone and nasal spine, bony part of nasal septum

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

What are the cartilaginous parts of the nose?

A

2 lateral cartilages, 2 alar cartilages, and septal cartilage (nasal septum)

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

What lines the nasal cavity?

A

Nasal mucosa

Except for the vestibule of the nose (considered an external portion)

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

Nasal mucosa is firmly connected to what?

A

The periosteum of the bony parts of the nasal cavity and the perichondrium of the cartilaginous nasal components

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

What do the areas lined with nasal mucosa constitute?

A

The respiratory area (inferior 2/3) and the olfactory area (superior 1/3)

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

The olfactory area of the nasal cavity has specialized nasal mucosa that contains what?

A

The peripheral nerve endings of the olfactory nerve (CN I) for special sense of olfaction

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

What makes up the roof of the nasal cavity?

A

Frontal bone, ethmoid bone and sphenoid bone

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

What forms the floor of the nasal cavity?

A

Palatine process of maxilla and horizontal plate of palatine bone

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

What forms the medial wall of the nasal cavity?

A

Nasal septum (perpendicular plate of ethmoid, vomer, septal cartilage, nasal crests of maxillary and palatine bones)

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

What forms the lateral wall of the nasal cavity?

A

Superior, middle and inferior nasal conchae

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

Which structures pass through the sphenopalatine foramen?

A

Sphenopalatine A and nasopalatine N

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

What is the sphenoethmoid recess an opening of?

A

Sphenoid sinus

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

What is the superior nasal meatus an opening of?

A

Ethmoidal sinuses

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

What is the middle nasal meatus an opening of?

A

Frontal sinus
Maxillary sinus also opens into middle nasal meatus in posterior part of semilunar hiatus at the maxillary ostium (below ethmoid bulla)

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

What is the inferior nasal meatus an opening of?

A

Nasolacrimal duct

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

The nasal conchae divided the nasal cavity into what 4 passages?

A

Sphenoethmoidal recess, superior nasal meatus, middle nasal meatus, inferior nasal meatus

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

Most of the blood supplied to the nasal cavity is to what?

A

The lateral and medial walls

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

Which arteries provide arterial blood supply to the nasal cavity?

A

Opthalamic artery via anterior and posterior ethmoid arteries
Maxillary artery via sphenopalatine and greater palatine A
Facial artery via superior labial and lateral nasal branches

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

Venous drainage to the nasal cavity is through which veins?

A

Sphenopalatine, facial and ophthalmic veins

20
Q

What is the Kiesselbach area?

A

Where all five arteries supplying the nasal cavity come together in a capillary bed and can bleed profusely

21
Q

What is the pterygopalatine fossa?

A

A small pyramid shaped space that is found inferior to the apex of the orbit

22
Q

What is the anterior boundary of the pterygopalatine fossa?

A

Maxillary tuberosity

23
Q

What is the posterior boundary of the pterygopalatine fossa?

A

Pterygoid process of sphenoid (lateral plate)

24
Q

What is the medial boundary of the pterygopalatine fossa?

A

Perpendicular plate of palatine bone

25
Q

What is the lateral boundary of the pterygopalatine fossa?

A

Opens into infratemporal fossa via pterygomaxillary fissure

26
Q

What is the roof of the pterygopalatine fossa?

A

Greater wing of sphenoid (incomplete)

27
Q

What is the floor of the pterygopalatine fossa?

A

Pyramidal process of palatine bone

28
Q

What does the superior opening of the pterygopalatine fossa open into?

A

Inferior orbital fissure

29
Q

What does the inferior opening of the pterygopalatine fossa open into?

A

It is closed except for at the palatine foramen

30
Q

What are the contents of the pterygopalatine fossa?

A

Maxillary nerve (CN V2), pterygopalatine ganglion and third part of maxillary artery

31
Q

Describe the innervation to the lacrimal gland

A

Maxillary nerve -> zygomatic nerve -> zygomaticotemporal nerve -> has a communicating branch that conveys parasympathetic fibers to the lacrimal nerve (CN V1) -> to lacrimal gland

32
Q

Parasympathetic fibers to the pterygopalatine ganglion are from what?

A

The facial nerve (CN VII) via the greater petrosal nerve which joins the deep petrosal nerve to form the nerve of the pterygoid canal
The fibers from the greater petrosal nerve synapse in the ganglion

33
Q

Describe the sympathetics of the pterygopalatine fossa

A

The deep petrosal nerve arises from the internal carotid plexus and conveys postsynaptic sympathetic fibers which join branches of the maxillary N via the pterygopalatine ganglion but do not synapse there
Presynaptic sympathetic fibers synapse in the superior cervical ganglion

34
Q

Which nerves are in the pterygopalatine fossa?

A

Infraorbital N, zygomatic N, orbital branches (CN V2), maxillary N (CN V2), nerve of pterygoid canal (greater and deep petrosal nerves), greater and lesser palatine N, medial and lateral superior and posterior inferior nasal branches from nasopalatine N (V2)

35
Q

Which artery is within the pterygopalatine fossa?

A

Maxillary A including descending palatine, posterior-superior alveolar A, infraorbital A, artery of pterygoid canal and sphenopalatine A

36
Q

Which structures pass through the inferior orbital fissure to exit the pterygopalatine fossa?

A

Zygomatic branch of maxillary N
Infraorbital A and inferior opthalamic vein
Communicates with the orbit

37
Q

Which structures pass through the foramen rotundum of the middle cranial fossa to enter the pterygopalatine fossa?

A

Maxillary N

38
Q

Which structures pass through the pterygoid canal at the base of the skull to enter the pterygopalatine fossa?

A

N of pterygoid canal (greater and deep petrosal)

A of pterygoid canal

39
Q

Which structures pass through the greater palatine canal to the exit the pterygopalatine fossa to go to the oral cavity?

A

Greater and lesser palatine N
Descending palatine A
Communicates with the oral cavity

40
Q

What is the lesser palatine canal?

A

A branch from the greater palatine canal

41
Q

Which structures pass through the sphenopalatine foramen to exit the pterygopalatine fossa?

A

Nasopalatine N and sphenopalatine A

Connects to the nasal cavity

42
Q

What is the most common cause of epistaxis?

A

Local trauma or trauma to the face

43
Q

Where do most cases of epistaxis occur?

A

In the anterior part of the nose with the bleeding usually arising from Kiesslebach’s plexus

44
Q

Posterior epistaxis usually arises from what?

A

The posterior nasal cavity via branches of the sphenopalatine arteries

45
Q

What structures pass through the pterygomaxillary fissure?

A

Posterior superior alveolar N
Terminal part of the maxillary A
Leaving fossa to enter the infratemporal fossa

46
Q

What passes through the pharyngeal canal to exit the pterygopalatine fossa and enter the nasal cavity?

A

Pharyngeal branches of the maxillary N and A

NE Exam 1 (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions