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602 Exam 2 > Paranasal Sinuses > Flashcards

Paranasal Sinuses Flashcards

1
Q

What are the 4 paranasal sinuses?

A

frontal sinus, maxillary sinus, ethmoid air cells, & sphenoid sinus

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2
Q

How many ethmoid air cells are on either side of the face?

A

7-9

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3
Q

Label

A
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4
Q

Label the sphenoid bone

A
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5
Q

Label the sphenoid bone

A
  1. Lesser wing
  2. Body
  3. Greater wing
  4. Lateral pterygoid plate
  5. Medial Pterygoid plate
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6
Q

___ passes through the foramen spinosum

A

Middle meningeal artery

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7
Q

Label

A
  1. Frontal process
  2. Zygomatic process
  3. Body
  4. Alveolar process
  5. Palatine process
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8
Q

Label

A
  1. Frontal process
  2. Infraorbital margin
  3. Infraorbital foramen
  4. Canine fossa
  5. Zygomatic process
  6. Incisive fossa
  7. Canine eminence
  8. anterior nasal spine
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9
Q

Label

A
  1. Frontal process
  2. Lacrimal groove
  3. Anterior lacrimal crest
  4. anterior nasal spine
  5. Incisive fossa
  6. Canine eminence
  7. canine fossa
  8. Alveolar process
  9. Alveolar process
  10. Zygomatic process
  11. Orbital surface
  12. Infratemporal surface
  13. maxillary tuberosity
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10
Q

Label

A
  1. Ethmoid crest
  2. Middle meatus
  3. Conchal crest
  4. Inferior meatus
  5. Maxillary hiatus
  6. Incisive foramen
  7. Palatine process
  8. Maxillary tuberosity
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11
Q

Label

A
  1. Frontal process
  2. Zygomatic process
  3. Posterior superior alveolar foramen
  4. Infratemporal surface
  5. Maxillary tuberosity
  6. Nasal crest
  7. Palatine process
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12
Q

Label

A
  1. Palatine process
  2. maxillary tuberosity
  3. Zygomatic process
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13
Q

Label

A
  1. Palatine process
  2. Frontal process
  3. Orbital surface
  4. Infraorbital groove
  5. Infraorbital canal
  6. Zygomatic process
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14
Q

Label

A
  1. Zygomatic recess
  2. Infraorbital recess
  3. alveolar recess
  4. Orbital margin
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15
Q

What’s the largest paranasal sinus?

A

Maxillary sinus

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16
Q

Where’s maxillary sinus located? What’s its shape?

A

Located ENTIRELY within the body of the maxilla
Pyramid shaped (5 sided) w/ 3 recesses

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17
Q

What are the walls of the maxillary sinus?

A

Posterior
Orbital (superior)
Facial (anterior)
Medial (lateral nasal wall)
Bucco-alveolar (inferior)

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18
Q

Example of Infection that spreads from molar teeth to mucous of maxillary sinus

A

odontogenic sinusitis

19
Q

When does the max sinus develop? When does it expand?

A

Develops embryologically at 10th week of gestation
Expands by 5th month
Neumatizes (has air filled cavities) at birth

20
Q

Where is the max sinus located in children?

A

level of palatine & as you grow, they grow apart

21
Q

Stuffy nose is associated w/ which sinus?

A

Maxillary

22
Q

Main functions of the maxillary sinus

A
  • Humidifying & warming inspired air
  • Immune defense
  • Nitric oxide production
23
Q

What are the 2 blood supply venous drainages of the max sinus?

A

Pterygoid venous plexus & Facial vein anteriorly

24
Q

Infection of the max sinus can spread to

A

cavernous sinus

25
Q

What’s inflammation in the maxillary sinus called?

A

Cavernous sinus thrombosis

26
Q

What is the sensory, sympathetic and parasympathetic n. supply to the max sinus?

A
  • Sensory: comes from maxillary nerve
  • Sympathetic: comes from superior cervical ganglion
  • Parasympathetic: comes from sphenopalatine ganglion
27
Q

In the L medial wall of the max sinus, ___ is in the top half & ___ is in the bottom half

A

top half = nose
bottom half = palate

28
Q

What are the branches of the maxillary nerve?

A

Posterior superior dental branch
Middle superior dental branch
Infraorbital branch

29
Q

Label

A
  1. Crista galli
  2. Cribiform plate
  3. Superior nasal concha
  4. Perpendicular plate
  5. Middle nasal concha
  6. Orbital plate
30
Q

Label

A

Lateral mass of ethmoid

31
Q

Label

A
  1. Crista galli
  2. Air cells
  3. Air cells
  4. Perpendicular plate
  5. orbital plate
  6. Ethmoid bulla
  7. Middle nasal concha
32
Q

Label

A
  1. Crista galli
  2. Air cells
  3. Cribiform plate
  4. Orbital plate
33
Q

Label

A
  1. Crista galli
  2. Orbital plate
  3. Perpendicular plate
  4. Middle nasal concha
  5. Air cells
34
Q

Label

A
  1. Crista galli
  2. Ethmoid bulla
  3. Uncinate process
  4. Middle nasal concha
  5. Superior nasal concha
  6. Perpendicular palte
35
Q

Label

A
  1. Crista galli
  2. Perpendicular plate
36
Q

What makes up the side of the nose?

A

Nasal septum
Vomer
Perpendicular plate

37
Q

Label

A
  1. Superior nasal concha
  2. Middle nasal concha
38
Q

Label

A
  1. Ethmoid bulla
  2. Ucinate process
39
Q

Label

A
  1. Superior nasal concha
  2. Middle nasal concha
  3. Perpendicular plate
40
Q

Symptoms of sinus disease

A

pain in maxillary teeth

41
Q

Dental problems causing sinus disease

A

Endodontic problems/non-vital teeth
Periodontal problems
Dental implant issues
tumor/swelling/neoplasms
Dental structures (root tips, endo filling, implants) displaced into sinus

42
Q

___ needs alveolar bone implant

A

Caldwell-luc operation

43
Q

What is oro-antral fistula? What can it result form?

A

non-healing, unnatural opening from the sinus into oral cavity

Trauma
Periodontitis
Peri-implantitis
Endodontic disease/necrotic tooth pulp
Bad implant placement
Surgery: extractions, root-end surgery, implants, periodontal flaps

602 Exam 2 (10 decks)

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