Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy Week 16 > Pterygopalatine Fossa > Flashcards

Pterygopalatine Fossa Flashcards

(73 cards)

Start Studying
1
Q

What Spaces does the pterygopalatine Fossa communicate with?

A
  • Middle Cranial Fossa
  • Infratemporal Fossa
  • Floor of the orbit
  • Lateral Wall of the Nasal Cavity
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the major site of the distribution for the maxillary n. (V2) and the maxillary a.?

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

Where does all of the blood and nerve supply to the upper teeth come from?

A
  • Maxillary n. (V2)

- Maxillary a. (terminal pt)

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

Boundaries of Pterygopalatine Fossa:

  • Anterior
  • Medial
  • Posterior
  • Roof
A

Anterior:
- Posterior Surface of Maxilla

Medial:
- Vertical Plate of Palatine Bone

Posterior:
- Sphenoid - Pterygoid Processes

Roof:
- Sphenoid - Greater Wing

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

What two spaces are connected by foramen rotundum?

A
  • Middle Cranial Fossa

- Pterygopalatine Fossa

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

Where is the anterior opening to the pterygoid canal?

A
  • Medial and inferior to foramen rotundum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Anterior and posterior openings of the pterygoid canal?

A

Anterior:
- Pterygopalatine Fossa

Posterior:
- Middle Cranial Fossa ( just anterior and inferior to where carotid enters

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

What 7 formamina and fissures open into the pterygopalatine fossa?

A
  1. Foramen Rotundum
  2. Pterygoid Canal
  3. Palatovaginal Canal
  4. Palatine Canal
  5. Sphenopalatine Foramen
  6. Ptergomaxillar Fissure
  7. Inferior Orbital Fissure
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where does the Palatovaginal canal lead to from the pterygopalatine fossa?

A

Nasopharynx

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

Where does the Palatine canal lead to from the pterygopalatine fossa?

A

Opens inferiorly and spits into greater and lesser palatine foramina

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

Where does the sphenopalatine foramen lead to from the pterygopalatine fossa

A
  • Lateral Nasal Wall
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Where does the pterygomaxillary fissure lead to from the pterygopalatine fossa

A

Infratemporal Fossa

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

Where does the Infraorbital Fissure lead to from the pterygopalatine fossa

A

Floor of the Orbit

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

What fiber types leave the pterygopalatine ganglion?

- innervation type?

A
  1. Nasal
  2. Palatine
  3. Pharyngeal

**Maybe orbital, but it was not mentioned in lect

(GVE - symp. and parasymp; GSA)

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

What do the orbital branches do?

A

GSA to:

  • Orbital wall
  • Sphenoid sinus
  • ethmoid sinus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What hole must the orbital branches pass through to get to the palatine region?

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

What holes must the greater and lesser palatine nn. pass through to get to the hard and soft palates?

A

Palatine Foramen => Greater and lesser palatine foramena

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

Which of the nasal nn. from the pterygopalatine ganglion travels across the roof of the nasal cavity to supply the medial wall?

A
  • Nasopalatine nerve.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What hole does the pharyngeal n. use to exit the pterygopalatine fossa?
- What does it do?

A
  • Palatovaginal Canal

- Supplies mucosa and glands of the nasopharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What are the branches of the zygomatic n.?

A
  • Zygomaticotemporal n.

- Zygomaticofacial n.

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

How does the posterior superior alveolar n. exit the pterygopalatine fossa?

A
  • Alveolar Formina in the Posterior Maxilla
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What nerve gives rise to the middle and anterior superior alveolar nn.?
- Posterior Superior Alveolar n.

A

Anterior and Middle:
- Infraorbital n.

Posterior:
- Direct branch of V2

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

What plexuses do the alveolar nn. (Posterior, Middle, Anterior) ultimately become a part of?

A
  • Superior Dental Plexus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What nerves unit to form the nerve of the pterygoid Canal?

A
  • Greater Petrosal n. (CN VII)

- Deep Petrosal n. (=> Int. carotid plexus)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
What fiber types are contained in the in the nerve of the pterygoid canal?
GVE: Parasympathetic PREganglionic - Greater Petrosal n. Sympathetic POSTganlionic - Deep Petrosal n.
26
What ganglion is the greater petrosal n. associated with?
- Geniculate Ganglion **Sensory Ganglion for the Facial n.
27
What bones make up the Pterygomaxillary Fissure? - anterior - posterior
Anterior: - Posterior Part of Maxilla Posterior: - Pterygoid Process of Sphenoid
28
What is the doorway of the 3rd part of the maxillary artery to enter from the infratemporal fossa?
- Pterygomaxillary Fissure
29
What innervates most of the nasopharynx?
- Pharyngeal Branch of Maxillary n. (V2)
30
What is the terminal branch of the maxillary artery?
Sphenopalatine a.
31
How doe POSTganglionic sympathetic form CNVII reach their target?
- Travel with MAXILLARY (V2) or OPTHALMIC (V1) branches of trigeminal to reach their target
32
Where does the greater petrosal n. pick up its sympathetic component?
- As it passes the internal carotid and is joined by the deep petrosal n. (sympathetic)
33
The Greater Petrosal n. carries parasympathetic information to what organs?
***ALL glands above the oral fissure - All mucous gland in the nasal Cavity - Salivary Glands in the upper 1/2 of the oral cavity - Lacrimal gland in the orbit
34
Where are the postganglionic cell bodies that give rise to the deep petrosal n. located?
- Superior Cervical Sympathetic Ganglion (mostly T1 preganglionics synapsing)
35
Where do parasympathetic nerves jump off of branches of V2 to ride branches of V1? - What branches are involved - Associated Ganglia
- Parasympathetics ride on ZYGOMATICOTEMPORAL (V2) and hop on the LACRIMAL n. (V1) - Fibers from Pterygopalatine Ganglia
36
What do the sympathetic and parasympathetic POST ganglionics that jump onto the the lacrimal n. do? - Common pathology
- Control tear flow from lacrimal gland | - If a lesion occurs on parasympathetics of VII then patient will have chronic Dry eye
37
What is the origin of the anterior superior alveolar arteries?
Infraorbital a. => Maxillary a. => ECA = CCA
38
What frequently forms an elevation in the FLOOR of the sphenoid air sinus?
- Pterygoid Canal
39
What does the infraorbital n. run in on the floor of the orbit?
- Infraorbital groove
40
What does the infraorbital n. supply cutaneous innervation to?
1. Lower Eyelid 2. Lateral Nose 3. Upper Lip 4. Gingiva
41
What muscle of facial expression is the infraorbital n. deep to?
- Levator Labii superioris m.
42
What nn. come together to form the superior dental plexus?
- Anterior, Middle, and Posterior Superior Alveolar nn.
43
What branch of the 3rd part of the maxillary artery and Maxillary n. (V2) reenters the infratemporal fossa?
- Posterior Superior Alveolar a. and n.
44
What passes through the Pterygomaxillary fissure?
1. maxillary a. 2. Posterior Superior Alveolar Branch (=> maxillary a.) 3. Posterior Superior Alveolar n. (V2)
45
What spaces does the pterygopalatine fossa open into via its foramina and fissures?
1. Middle Cranial Fossa (rotundum, Pterygoid Canal) 2. Nasopharynx (pharyngeal canal) 3. Nasal Cavity (sphenopalatine foramen) 4. Orbit (orbital fissure) 5. Oral Cavity (palatine canal) 6. Infratemporal Fossa (Pterygomaxillary fissure)
46
What two bones make up the pterygoid canal?
1. Sphenoid | 2. Palatine Bone
47
What 6 branches come off of the 3rd part of the maxillary a.?
1. Phayngeal 2. A. of Pterygoid Canal 3. Sphenopalatine a. 4. Infraorbital a. 5. Descending Palatine a. 6. Posterior Superior Alveolar a.
48
What does the artery of the pterygoid canal distribute to?
- Upper Pharynx | - Auditory Tube
49
What does the Pharyngeal a. distribute to?
- Sphenoid Sinus - Nasopharyx - Auditory Tube
50
What do the middle and anterior superior alveolar arteries branch off from? - Where do they supply blood?
Branches from Infraorbital artery Supply: - Maxillary Sinus - Incisor Teeth - Canine Teeth
51
What two arteries anastomose in the incisive canal?
Greater Palatine | Sphenopalatine
52
What is the anterior continuation of the maxillary artery?
- Infraorbital artery
53
T or F: the Maxillary n. has a functional relationship with the Pterygopalatine Ganglion.
False, the relationship is purely anatomical
54
Describe areas supplied by orbital branches of V2.
Supply: Oribital Wall Sphenoid Sinus Ethmoid Sinus
55
Describe the passage of the infraorbital n. from the Pterygopalatine Fossa to the Face.
Infraorbital fissure ---> Infraorbital groove ---> Infraorbital Canal ----> Infraorbtial Foramen
56
What two nerves contribute to the innervation of the maxillary sinus?
1. Orbital Branches | 2. Posterior Superior Alveolar n.
57
What are the branches of V2 that pass through the Pterygopalatine Ganglia?
1. Palatine n. 2. Lateral nasal branches 3. Nasopalatine n. 4. Pharngeal n.
58
What nerve gives rise to the anterior and middle alveolar nerves? - where
Infraorbital n. INSIDE the infraorbital CANAL
59
What passes through the spenopalatine foramen?
1. Posterior Lateral Nasal Branches of V2 2. Nasopalatine (V2) 3. Sphenopalatine a.
60
What branch of CN VII has postganglionic that hitchhike on branches of V2? - ganglia
Greater Petrosal n. ***Note: that it also hitchhikes on the lacrimal n. which is a branch of V1***
61
What branch of CN VII is associated with postganglionic that hitchhike on branches of V3? - ganglia
Chorda Tympani
62
Besides carrying preganglionic GVE fibers, what fiber type is carried by the Greater Petrosal N.?
Taste information from the soft palate
63
T or F: branches of maxillary V2 synapse in the pterygopalatine ganglia
FALSE, these just pass through
64
What fiber types are found in the n. of the pterygoid canal?
Taste Sympathetic (post gang.) Parasympathetic (pre gang.) Special Sensory
65
T or F: the soft palate is really responsive to sweet taste
True, cell bodies for this are found in the geniculate ganglion
66
How do SA fibers get to taste buds on the soft palate?
1. Greater Petrosal n. 2. Though PP ganglion (NO SYNAPSE) 3. Leave with Lesser Palatine nn.
67
What are the Jobs of CN VII?
1. BE motor (facial expression) 2. GVE: - Lacrimal (Greater Pet.) - Submandibular (Chorda Tymp) - Sublingual (Chorday Tymp)
68
T or F: In general, parts 1 and 3 of the maxillary a. have branches that travel through bony canals.
True, part two goes to muscle and just travels through soft tissues
69
What groove the floor of the sphenoid sinus and also travels through the medial pterygoid plate?
N. and A. of the pterygoid canal
70
If you punctured the infraorbital groove and canal inferiorly, what space would you be in?
Maxillary Sinus
71
If you punctured the medial wall of the Pterygopalatine fossa where would you be?
Nasal Cavity
72
If you punctured the anterior wall of the PPF where would you be?
Maxillary Sinus
73
The infraorbital groove can be found on what bone?
Maxilla

Anatomy Week 16 (12 decks)

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