Chapter 11 - Sinuses/Mandible/TMJ Flashcards

1
Q

Paranasal sinuses are lined with:

A

Mucous membrane

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2
Q

Paranasal sinuses are sometimes called the:

A

Accessory nasal sinuses

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3
Q

How many groups are there of paranasal sinuses

A

4

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4
Q

What are the 4 groups of paranasal sinuses

A

Maxillary
Frontal
Ethmoid
Sphenoid

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5
Q

Old term for maxillary sinuses

A

Antrum of Highmore

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6
Q

Maxillary sinuses are part of what structure

A

Facial bones

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7
Q

Where are maxillary sinuses located

A

Body of each maxillary bone

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8
Q

What sinuses are pyramid shaped

A

Maxillary

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9
Q

Maxillary sinuses have _____ _____ walls

A

Thin, bony

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10
Q

Conical projections from the __________ ___________ reach into the floor of the sinuses

A

Upper molars

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11
Q

Maxillay sinuses communicates with the ________ _______ and with each other

A

Nasal cavity

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12
Q

Nasal cavity is divided into 2 equal chambers called:

A

Fossae

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13
Q

Where is fluid or mucus in the maxillary sinuses

A

Nasal cavity/fossae

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14
Q

What sinuses are part of the cranium

A

Frontal sinuses
Sphenoid sinuses
Ethmoid

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15
Q

Where are frontal sinuses located

A

Posterior to the glabella

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16
Q

Frontal sinuses rarely become aerated before what age

A

6

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17
Q

Are frontal sinuses symmetrical

A

Rarely

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18
Q

What are the frontal sinuses separated by

A

Nasal septum

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19
Q

Do men or women have larger frontal sinuses

A

Men

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20
Q

Frontal sinuses may be singular, paired, or:

A

Totally absent

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21
Q

Where are ethmoid sinuses located

A

Within the lateral masses of the ethmoid bone

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22
Q

What are the collections in the ethmoid sinuses

A

Anterior
Middle
Posterior

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23
Q

From a lateral perspective, it looks like the _______ sinuses lie within the orbits, but are really helping to make up the ________ walls of each orbit

A

Anterior
Medial

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24
Q

Where are the sphenoid sinuses located

A

Sphenoid bone below the sella turcica

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25
Q

How are sphenoid sinuses shaped

A

Cube

26
Q

Sphenoid sinuses are often separated by a _______

A

Septum

27
Q

What does an air fluid level indicate in the sphenoid sinuses

A

Fracture

28
Q

Blood or cerebral fluid in the sphenoid sinuses

A

Spenoid effusion

29
Q

Pathways of communication which provide drainage

A

Osteomeatal Complex

30
Q

Osteomeatal complex provides drainage for which sinuses

A

Frontal
Ethmoid
Maxillary

31
Q

What causes sinusitis

A

Obstructed pathways

32
Q

What are the two key passageways called of the ostemeatal complex

A

Infundibulum
Middle nasal meatus

33
Q

What is the thin/horse-shaped bone

A

Mandible

34
Q

What is the largest facial bone

A

Mandible

35
Q

What is the only moveable bone in the skull

A

Mandible

36
Q

Mandible is 2 bones from birth until:

A

1 year

37
Q

Angle of the mandible is also known as

A

Gonion

38
Q

Superior to the gonion is the

A

Ramus

39
Q

Both mandible bodies unite to form the

A

Symphysis Menti

40
Q

Frontal veiw of the mandible shows the

A

Body

41
Q

The depression below the symphysis menti is the

A

Mentum

42
Q

The very center of the mentum is the

A

Mental point

43
Q

What serves as a passage way for nerves and blood vessels located on each half of the mandible

A

Mental foramen

44
Q

What terminates in a ā€œUā€ shaped notch

A

Ramus of the mandible

45
Q

What is the notch of the ramus called

A

Mandibular notch

46
Q

Each notch has two processes, the most anterior process is the ___________ and the most posterior process is the ______

A

Coronoid process
Condyloid

47
Q

Where does the condyloid process fit into

A

TM fossa of the temporal bone

48
Q

What is the only moveable joint in the skull

A

TMJ

49
Q

How many maxillary sinuses are there

A

2

50
Q

How many frontal sinuses are there

A

Usually 2

51
Q

How many Ethmoid sinuses are there

A

Many

52
Q

How many sphenoid sinuses are there

A

1 or 2

53
Q

Purpose of paranasal sinuses

A

Assist in vocal resonance
Lighten the weight of skull
Produce mucus

54
Q

What sinuses exhibit a definite cavity at birth

A

Maxillary

55
Q

All paranasal sinuses communicate with each other and the:

A

Nasal cavity

56
Q

Where is the middle nasal passageway located

A

Superior medial aspect of the sinus cavity

57
Q

How does the large maxillary sinus drain?

A

Through the infundibulum passageway down through the middle nasal meatus into inferior nasal meatus

58
Q

The uncinate process is part of what bone

A

Ethmoid bone

59
Q

What does the uncinate process make up

A

Medial wall of the infundibulum passageway

60
Q

Function of the ethmoid bulla

A

Received drainage from the frontal and ethmoid sinuses

61
Q

How do the frontal and ethmoid sinuses drain

A

Into the ethmoid bulla, down through the middle nasal meatus into the inferior nasal meatus