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positioning > facial bones > Flashcards

facial bones Flashcards

1
Q

the superior and middle nasal conchae is located on which bone

A

ethmoid

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2
Q

which bone is the largest of the immovable facial bones

A

maxilla

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3
Q

the nasal septum is made of what two bones

A

perpendicular plate of ethmoid & vomer

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4
Q

the waters projection for the facial bones should form a _____ degree angle between the OML & the film

A

37

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5
Q

which positioning line should be perpendicular when positioning for a waters

A

metomeatal line

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6
Q

when positioning for a modified waters for the facial bones what two positioning landmarks should be lined up

A

lips & EAM

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7
Q

what facial bone forms the anterior 2/3 of the hard palate

A

maxilla

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8
Q

the round anterior process at the top of each ramus is called the

A

coronoid process

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9
Q

the thick ridges (sockets) that hold / support the upper teeth are called the

A

alveolar process

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10
Q

the 2 holes on the mandibular body that allow for the passage of blood vessels and nerves are called the

A

metal foramen

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11
Q

which bone forms the posterior 1/3 of the hard palate

A

palatine

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12
Q

the joint where the right and left halves of the mandible have fused together is called the mental

A

symphysis

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13
Q

which facial bone contains the palatine process

A

maxilla

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14
Q

what is the name of the hole located on each maxillary bone below the orbit that serves as a passage for blood vessels and nerves

A

infra orbit foramen

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15
Q

the pointed process where maxillary bones meet below the nasal cavity is called the

A

anterior nasal spine (acanthion)

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16
Q

the coronoid process and mandibular condyle are separated by an indentation called the

A

mandibular notch

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17
Q

which sinuses are the largest

A

maxillary

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18
Q

what paranasal sinus group is superior to the other sinus groups

A

frontal

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19
Q

which bone contains the temporal process

A

zygoma

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20
Q

patients who are having an examination of the paranasal sinuses should always be examined in the upright position to :

A

demonstrate the presence or absence of fluid & to differentiate between fluid and other pathological conditions

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21
Q

which projection will best demonstrate the frontal and anterior ethmoid sinuses

A

PA axial ( Caldwell )

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22
Q

what must be projected below the maxillary sinuses for the parietoacanthial ( Water ) of the sinuses

A

petrous pyramid

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23
Q

the large aperture in the occipital bone , though which the medulla oblongata and spinal cord exit is termed the :

A

foramen magnum

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24
Q

to successfully demonstrate the ethmoidal and sphenoidal sinuses on the SMV projection, which of the following must occur

A

the IOML line must be parallel & the CR must be perpendicular to the IOML line & horizontal

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25
Q

which parts of the patients face touch the table for a PA axial Caldwell

A

forehead & nose

26
Q

which evaluation criterion pertains to a lateral projections of the facial bones

A

the orbital roofs should be superimposed

27
Q

with reference to the IR how should the CR be directed for the parietoacanthial projection

A

perpendicular

28
Q

when positioning for a lateral facial bones which positioning line of the head should be perpendicular to the IR

A

IPL

29
Q

malar bones are on the

A

zygoma

30
Q

has a scroll like appearance

A

inferior nasal conchae

31
Q

the alveolar process is on the

A

maxilla

32
Q

maxillary bone contains , large filled air cavity

A

maxillary sinus

33
Q

the largest immovable bones of the face

A

the maxillary bones

34
Q

each lacrimal bone articulates with 2 cranial bones and 2 facial bones , what are they

A

frontal , ethmoid & maxilla & inferior nasal conchae

35
Q

what 2 bones form the bony nasal septum

A

ethmoid & vomer

36
Q

the only movable joint in the skull

A

TMJ

37
Q

largest facial bone

A

mandible

38
Q

the posterior process of the upper ramus is termed the _______ process and consist of 2 parts

A

condyloid

39
Q

the anterior portion of the upper ramus is called the ________ process

A

coronoid

40
Q

CT is best for

A

bony erosion

41
Q

the frontal and sphenoid sinuses begin to show on radiographs at age

A

6-7

42
Q

the _______ sinuses develop last

A

ethmoid

43
Q

all sinuses are generally developed by what age

A

late teenage year (18 or 17 )

44
Q

antrum is an abbreviation for

A

antrum of high more

45
Q

after a skull trauma an air fluid level with the sphenoid sinus can appear indicating a _______ skull fracture

A

basal

46
Q

any abnormal enlargement of the optic nerve could cause erosion of the

A

sphenoid strut

47
Q

each orbit projects at what angle to the MSP

A

37 degrees

48
Q

each orbit is composed of 7 bones bones , name them

A

ethmoid, frontal. sphenoid, lacrimal, maxillary, palatine & zygomatic

49
Q

what projection best demonstrates a blowout fracture

A

modified parietoacanthial waters method

50
Q

the Parieto- orbital oblique optic forming is also known as

A

the rhese method

51
Q

what projection uses a three point landing technique chin, nose, cheek and lines AML pepndicular

A

Rhese method

52
Q

what projection should show the optic foramen projected into the lower outer quadrant of the orbit

A

Rhese method

53
Q

the nasal bone articulates with what :

A

frontal bone , maxillae , perpendicular plate of ethmoid

54
Q

the two smallest bones in the skull

A

lacrimal bones

55
Q

inferior borders of spongy bone that support roots of teeth

A

alveolar process

56
Q

the zygomatic bone. articulates with what :

A

frontal bone , zygomatic process of temporal bone, maxilla , sphenoid

57
Q

essential projections for facial bones

A

lateral
waters
reverse waters
PA axial caldwell

58
Q

which projections demonstrates all 4 sets of sinuses

A

lateral

59
Q

which projection demonstrates anterior ethmoid cells & petrous pyramids in lower third orbits

A

PA axial caldwell

60
Q

open mouth waters demonstrates

A

sphenoid sinuses
maxillary sinuses
petrous pyramids lying inferior to maxillary floor

61
Q

when you open your mouth what is moving forward

A

tmj joint

62
Q

the base of the orbit

A

frontal (oribtal plate) , zygoma & maxilla

positioning (3 decks)

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