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skull/ facial bone

positioning for skull and facial bones

Question	Answer
What is the IR for lateral projection of the skullp	10x 12
what plane is parrallel to the IR for lateral projection of the skull	mid saggital
What line is parrallel to the IR forlateral projection of the skull	IOML
Respiration of skullW	suspend
where does the cr enter for lateral projection of the skull	2 " SUPERIOR TO EAM
Whatis seen in profile in the lateral prheojection of the skull a) mastoid b)sella turcica c) clinoid process	sella turcica
For a trauma lateral skull do a	dorsal decubitus in supine lateral
The PA axial position is called the ___ method	caldwell
what two parts of the face are placed on the table for the PA axial position of skull	nose and forehead
for the caldwell what line is perp to IR	OML
central ray exits the ______ fro the caldwell	nasion
for thhee PA projection of the skull when the frontal lobe is of interest the cr exits at the	nasion
angle for the caldwell is	15 derees caudad
to show the superior orbitaql fissures direct the centrqal rqay through the ______ at an angle of	mid orbits 20 -25 degrees caudad
to show the rotundum forqamina in a pa axial projection, central ray direts to the ______ at an angle of _________	nasion, 25 30
where shold the petrous ridges be seen in a caldwell projection	lower 1/3 of orbits
if you angles 10 degrees then the petrous ridges would be where	they would be half way in orbit
if you angle more the petrous ridges go	down below the orbits
what is perp with IR for the caldwe3ll	oml
what two strx of skull shold be shown in pa axail projecti	crista galli and superior orbital fissure
the AP axial projection is called the ___ method	towns
what is perp to Ir for townes method	OML
If you want the IOML to bw perp to the IR them use a ___ angle for a ap axial projectionof the skull	7degrees
what is cr for townes rmethod	30 degrrees caudal
what shold be symmetric on the townes method of skull	petrous ridges
what two structures shhe ould be in the foramen magnum for a townes method of the skull	dorsum sella and posterior clinoid process
the dorsum sella looks like a ____ tail in the foramen magnum	whale
if the whale tale is above the foramen magnum then you a) havent angled enough b) anglesd too much	didnt angle enough
Parietoorbital oblique projection is called the ___ method	rhese
for the parietoorbital obliue proection, place the ________ on the table	zygomsa, nose and chin
the midsaggital plane should form an angle of ____ to the IR	53 deg
the central ray enter where for the parietoorbital oblique projection	1 " superior and posterior to the tea
where does the cr exit fo r the parietoorbital oblique projection	affected orbit closest to ir
where is the optic foramen located for the parietoorbital oblique projection of skull	inferior and lateral quadrqant of the projected orbit
for the parietoorbital oblique projection the optic canal end is seen	on end
what is perpindicualr to the IR for the parieto oblique projection of the skull	AML
if its lateral deviation then its ? a) incorrect rotation b) incorrexrt angle AML	incorrect rotation
if its longitudinal deviation then a) incorrect rotation b) incorrexrt angle AML	incorrect angle AML
the messy side of the parietoorbital oblique projection is thed	medial side the sinuses
the orbitoparietal oblique projectiion is called the ________ metho	reverse rhese method
what is the ir size for the lateral projection of the facial bones	8x10
what is parralles with the IR for the lateral projectionof the facial bones	IOML
whats perp with the IR fo the lateral projectionof the facial bones	Interpupillar line
there should be no rotation of ________ for the lateral projectionof the facial bones	sela turcica
where does central ray enter for the lateral projectionof the facial bones	alfway between the outer canthus and EAM
collimate down to a ______ for the lateral projectionof the facial bones	6x10
what bone should be in the center for the lateral projectionof the facial bones	zygomatic bone
what should be almost superimposed fo rthe lateral projectionof the facial bones	mandibula rami
the _______ should be superimposed for the lateral projectionof the facial bones	orbital roofs
the waters method is _________ projection	paritoancanthial projection of the facial bones
what do you place on the IR for the paritoancanthial projection of the facial bones	tip of chin
the nose is about ___ inches in from to IR for the paritoancanthial projection of the facial bones	3/4
OML form a ____ degree angle with IR for the paritoancanthial projection of the facial bones	37
___ is perpindicual fo rthe paritoancanthial projection of the facial bones	MSP
the _____ is almost perpindicular to the IR for the paritoancanthial projection of the facial bones	MML
center the IR at the level of the _____ for the paritoancanthial projection of the facial bones	acancthion
the waters method shows what three structures	orbits, maxillae and zygomtic acrches
where are the petrous ridges projected for the paritoancanthial projection of the facial bones	immidiately below the maxillary sinus
the PA axial proojection of the facial bone is also called the waters and it is exactly the same as the waters except	use an 8x10 lw
Forthe lateral projection of the nasal bonesh what plane is perp with the IR	interpupillary line
for the lateral projection of the nasal bones what size cassete	8x10 cw for two exposures on the same cassette
w is perp with the IR fo rthe lateral projection of the nasal bones	interpupilaary line
wht is parrallel with tthe IR for the lateral projection of the nasal bones	IOML
what two strucxtures are demonstrated on the lateral projection of the nasal bone	anterior nasal spine and frontonasal suture
the smv stands for	submentovertical projection of the zygomatic arches
what touches the IR for the submentovertical projection of the zygomatic arches	apex of the head
what is parralles with the IR or the submentovertical projection of the zygomatic arches	IOML
what plane is perp with the submentovertical projection of the zygomatic archees	msp
for the submentovertical projection of the zygomatic arches, there shold be bilatera symetric images of the	zygomatic arches
where does cr enter for submentovertical projection of the zygomatic arches	mid throat and 1 inch posterior to the outer canthis
how much do you angle for the submentovertical projection of the zygomatic arches	you dont know it depends on how mch they can tilt toheir head has to be perp to the IOML
wht is parrallel with tthe IR for the lateral projection of the nasal bones	IOML
what is parralles with the IR or the submentovertical projection of the zygomatic arches	IOML
what plane is perp with the submentovertical projection of the zygomatic archees	msp
for the submentovertical projection of the zygomatic arches, there shold be bilatera symetric images of the	zygomatic arches
where does cr enter for submentovertical projection of the zygomatic arches	mid throat and 1 inch posterior to the outer canthis
how much do you angle for the submentovertical projection of the zygomatic arches	you dont know it depends on how mch they can tilt toheir head has to be perp to the IOML
how do you position the head?	rotate msp 15 degrees toward affeted side tilt head 15 degrees away fromthe affected side
center the _________ to the film for the tangential zygomatic arch	zygomatic arch
what is the transverse centering for the pa projetoin of the mandible	level of lips
what are threeparts to the mandible	body, symphysis ramus
where does the cr exit for the PA projection of the mandible	acanthion
For the axiolateral oblique projectoin of the mandible, which part is of interest when the rami is parrallel and the chin is extended and head in a true lateral position ramus body symphysis	ramus
what is the central ray angulation for the axiolateral oblique projectoin of the mandible?	25 degrees cephalad
where should the central ray be directed for the axiolateral oblique projectoin of the mandible	to the part of the mandible of interest
when the patyients head is rotated 30 degrees toward the IR the the part of interest of the mandible for a axiolateral oblique projectoin of the mandible is the?	body
when the patyients head is rotated 45 degrees toward the IR the the part of interest of the mandible for a axiolateral oblique projectoin of the mandible is the?	symphysis
what line is perp to the IR for the axiolateral oblique projectoin of the mandible?	interpupillary line
the goal of the axiolateral oblique projectoin of the mandible is to place the area of interest on the mandible ________ with the IR	parrallel
for the axiolateral oblique projectoin of the mandible central ray wil exit ______	area of interes
for the axiolateral oblique projectoin of the mandible when the ramus is of interest, the cr enters at the	unaffected side of gonion
For the AP axial projection (towns medthod) the transverse centering is	midway between the tMJ and gonione
what are the 4 paranasal sinuses	frontal sethmoidal sphenoidal maxillary
what is the large3st sinus	maxiallary
what is most posterior sinus	sphenoidal sinus
what is most superior sinus	frontal
what is 2nd largest sinus?	frontalf
which sinusis usually developed at birth?	maxilary
when are the other sinuses distinguishable	6 or 7
For the lateral projection of the sinuses, what plane and what line is parrallel	IOml, msp
what line is perp?	interpupillaryf
t/f for a lateral projection of the sinus all 4 sinus groups should be shown	true
what 2 sinuses are of primary interest on the lateral proj of the sinus?f	sphenoid and ethmoid
For the PA axial projection (caldwell method) of the sinuses which sinuses are of primary interest	frontal sinus
where should the petrous ridges be for the PA axial projection (caldwell method) of the sinuses	lower 1/3 of orbits
the parietoacanthia projection of the sinuses is used to demonstrate which sinuses	maxiallry sinus
the parietoacanthia projection of the sinuses is also used to demonstrate wich foramen?	foramen rotundum
The submentovertical (SMV) projection of the sinuses is used to dimonstrate which sinuses	ethmoidal and sphenoidal
wehre does the cr enter for The submentovertical (SMV) projection of the sinuses	Though the sella turcica
the CR shold be perp to the ___ for the The submentovertical (SMV) projection of sinuses	IOML
What line is perp to the IR forlateral projection of the skull	IOML
where does the central ray enter for the lateral projectionof the nasal bone	1/2 inch distal to the nasion
which radiographic cranial position best demonstrate the sella turcica?	lateral
cranial sutures are ______ joints	fibrous
which exteranal landmark corresponds with the petrous ridge?	tea
list 3 classifications of the skull	mesocephalic, brachiocephalic, dolichocephalic
what evidence on AP axial (twn) radiograph indicates whether the correct CR angle and correct head flexion were used?	Dorsum sellae, posterior clinoids on foramen magnum
which AP axial projection for sella turcica best visualizes the anterior clinoid processes?	30 degree caudal to IOML
which projection best demostrate the foramen rotundum?	25 – 30 PA axial
what type of CR is used if dorsum sellae and posteior clinoid are of interest?	37 degree caudad
what does tmj stand for	temperomandibular joint

Created by: PIKFUR

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