sinus and facial bones

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64 Terms

1
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how many bones of the cranium and facial bones does the maxilla touch?

2 cranial bones and 7 facial bones

2
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how many bones of the cranium and facial bones does the zygomatic touch?

3 cranial bones and 1 facial bone

3
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how many bones of the cranium and facial bones does the nasal and lacrimal touch?

2 cranial and 2 facial

4
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how many paranasal sinuses are there?

4

5
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how do the paranasal sinuses communicate?

nasal cavity

6
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where is the maxillary sinus and what is a good reason to see it?

above the teeth and visible air fluid levels

7
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where is the frontal sinus normally located and how many are there?

inner and outer tables of frontal bone and varies

8
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are frontal sinuses symmetrical?

rarely

9
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how many sinuses are made up to be the ethmoid?

3

10
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where is the ethmoid sinuses?

inside the lateral masses

11
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the ethmoid sinus communicate with what?

sphenoid sinus and nasal cavity

12
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where is the sphenoid cavity?

below sella tunica

13
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is the sphenoid sinus symmetrical?

no

14
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what could be seen on an xray while looking at the sphenoid sinus?

basal skull fracture

15
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Which of the following facial bones is unpaired?

vomer

16
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Lacrimal is derived from a word meaning ____.

tear

17
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What is the name of the process of the mandible in which the lower teeth are embedded?

Alveolar process

18
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The older term “Antrum of Highmore” describes the _____.

Maxillary sinuses

19
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The posterior aspect of the bony orbit is termed the _____.

apex

20
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Which paranasal sinus is the last one to develop?

Frontal

21
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What passes through the optic foramen?

Second cranial nerve

22
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Which of the following bones makes up most of the lateral wall of the orbit?

Zygomatic

23
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what is the centering point for a lateral facial bones?

Zygomatic bones

24
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what line is perpendicular to the IR for a waters?

MML

25
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where is the centering point for the waters?

exit at acanthion

26
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what is the angle between the IR and OML in an erect waters?

37 degrees

27
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where are the petrous ridges in the waters?

below maxillary sinus

28
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what line is perpendicular to the IR for the caldwell?

OML

29
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what is the angle and the CR for the caldwell?

CR 15° caudad, exits at nasion

30
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where is the petrous ridges in the caldwell?

lower 1/3 in orbits

31
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what line is perpendicular to IR in an modified waters?

LML

32
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where is the CR in the modified waters?

exit at acathion

33
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what is the angle between the IR and OML during a modified waters?

55 degrees

34
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where is the petrous ridges in a modified waters?

lower 1/3 of maxillary sinus

35
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what line is perpendicular in the IR for the lateral nasal?

IP

36
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where is the CR for lateral nasal?

½ in inferior to nasion

37
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what line is perpendicular to the board during Superoinferior Tangential: Axial?

GAL

38
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what line is perpendicular to the CR for SMV?

IOML

39
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what is seen on the SMY?

zygomatic arches

40
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what line is parallel to IR for a Oblique Inferosuperior: Tangential?

IOML

41
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what is the rotate and tilt on the head for Oblique Inferosuperior: Tangential?

15 degrees on the affected side?

42
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what is visualized well on a Oblique Inferosuperior: Tangential?

zygomatic arches

43
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what is the angle between the MSP and IR for Parietoorbital Oblique Projection (Rhese Method)?

53 degrees

44
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what line is perpendicular for Parietoorbital Oblique Projection (Rhese Method)

AML

45
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what is seen in the Parietoorbital Oblique Projection (Rhese Method)?

Optic foramen in lower outer quadrant

46
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what angle is best for a Axiolateral Oblique Positioning for the body?

30 degree rotation

47
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what angle is best for a Axiolateral Oblique Positioning for the mentum?

45 degree rotation

48
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what angle is best for a Axiolateral Oblique Positioning for the general survey?

10-15 degree rotation

49
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what is a good angle for the Axiolateral Oblique Positioning just as an overall?

25 degrees

50
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what is the angle for a horizontal trauma?

CR 25° cephalad and 5°-10° posterior

51
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what is the line for a pa mandible?

OML

52
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where is the CR for a PA mandible?

exit at lips

53
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what line is used for the mandible?

OML and IOML

54
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what angle do you use for AP mandible?

CR 35° (OML)-42° (IOML) caudad

55
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where is the CR for a AP mandible?

glabella

56
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what is visualized on a AP Axial Mandible?

Condyloid processes demonstrated and symmetric

57
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what is seen on a panorex?

Entire mandible and all teeth demonstrated

58
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what is seen on AP Axial TMJ?

Condyloid processes and TM fossa demonstrated

59
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what skull angle Modified Law Method?

15 rotation

60
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where is the centering point for Modified Law Method?

1 ½ inches superior to EAM

61
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what is the CR angle for Modified Law Method?

15° caudad

62
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what is the CR angle for Axiolateral TMJ (Schuller Method)?

25°-30° caudad

63
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where is the CR for Axiolateral TMJ (Schuller Method)?

½ anterior and 2 inches superior to EAM

64
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where to center for a lateral sinus?

between outer canthus and EAM