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skull

QuestionAnswer
what positioning line extends from the EAM to the outer canthus? OML
what positioning landmark is located at the most superior point of the nasal bones? nasion
what positioning landmark is located at the base of the nasal spine? acanthion
what positioning landmark is the smooth elevation that is located between the supercilliary arches? glabella
what positioning landmark is most superior? glabella
where on the skull is the gonion located? on the lateroposterior part of the mandible
where on the skull is the outer canthus located? on the lateral boarder of each orbit
what positioning landmark is located at the anterior portion of the mandible? mental point
which suture articulates the frontal bone with both parietal bones? coronal
which suture joint both parietal bones at the vertex of the skull? sagittal
which suture joins a parietal bone with both a sphenoid bone and a temporal bone? squamosal
which suture joins both parietal bones with the occipital bone? lambdoidal
the bregma fontanelle is located at the junction of which two sutures? sagittal and coronal
the lambda fontanelle is located at the junction of which two sutures? lambdoidal and sagittal
the bregma fontanelle is located at a the junction of which cranial bones? frontal and both parietals
the lambda fontanelle is located at the junction of which cranial bones? occipital and both parietals
which skull classification refers to a typical skull shape? and what degrees is the angle formed between the petrous pyramids and midsagittal plane mesocephalic, 47 degrees
which skull classification refers to a long, narrow skull? and what degrees is the angle formed between the petrous pyramids and midsagittal plane dolichocephalic 40 degrees
which skull classification refers to a short, wide skull? and what degrees is the angle formed between the petrous pyramids and midsagittal plane brachycephalic, 54 degrees
on which cranial bone are the supercilliary arches located? frontal bone
on which cranial bone is the cribiform plate located? ethmoid
on which cranial bone is the crista galli located? ethmoid
which cranial bone has a petrous pyramid? temporal
on which cranial bone is the sella tursica located? sphenoid
which cranial bone has the mastoid process? temporal
which cranial bone is the perpendicular plate located? ethmoid
which cranial bone has both greater and lesser wings? sphenoid
which cranial bone does the first cervical vertebra articulate? occipital
the pterygoid processes project inferiorly from which cranial bone? sphenoid
from which cranial bone does the zygomatic process arise? temporal
the temporal process projects posteriorly from which facial bone? zygomatic
with which bone does the mandible articulate? temporal
where are the lacrimal bones located? on the medial wall of each orbit
where is the vomer found? on the floor of the nasal cavity
which bone comprises most of the lateral wall of the orbital cavities? zygomatic
which term refers to the anterior process of the mandibular ramus? coronoid
which term refers to the posterior process of the mandibular ramus? condyle
which facial bones have alveolar processes? maxillae, palatine
which bones from the posterior one fourth of the roof of the mouth? palatine
which positioning landmark is located on the maxillae? acanthion
which two positioning lines or planes should be perpendicular to the IR for the PA projection of the skull? OML and midsagittal plane
with reference to the patient, where should the IR be centered for the PA projection of the skull? nasion
with reference to the patient, where should the IR be centered for the lateral projection of the skull? 2 inches above the EAM
with reference to the IR, how should the inter pupillary line and the midsagittal plane be positioned for the later projection of the skull? interpup line: perpendicular ; midsag plane: parallel
for the AP axial projection, Towne method, of the skull how many degrees and which direction should the CR be directed when the OML is perpendicular to the IR? 30 degrees Caudal
for the AP axial projection, Towne method, of the skull how many degrees and which direction should the CR be directed when the IOML is perpendicular to the IR? 37 degrees caudal
which positioning line should be parallel with the IR for the SMV projection of the skull? IOML
which projection on the skull can be correctly performed with the central ray angled 37 degrees AP axial, towne method
which projection of the skull can be correctly performed with the CR angled 15 degrees PA axial, caldwell method
which projection of the skull produces a full basal image of the cranium? SMV, Schuller method
which projection of the skull projects the petrous bones in the lower third of the orbits PA axial,caldwell method
which projection of the skull should be obtained when the frontal bone is of primary interest? PA with perpendicular central ray
which evaluation criterion pertains to the AP axial projection, Towne method of the skull? part of the sella turcica should be seen within the foramen magnum
which evaluation criterion pertains to the PA projection of the skull? the distance from the lateral border of the skull to the lateral border of the orbit should be the same on both sides
which evaluation criterion pertains to the lateral projection of the skull? the orbital roofs should be superimposed
which evaluation criterion pertains to the SMV projection? the mental protuberance should superimpose the anterior frontal bone
for the PA axial projection, Haas method, where should the central ray enter the patients head? 1 1/2 inches below the external occipital protuberance
how many degrees and in which direction should the central ray be directed for the PA axial, Haas method, of the skull? 25 degrees cephlad
which evaluation criterion pertains to the PA axial, Haas method? the dorsum sella and posterior clinoids projected within the foramen magnum
with reference to the patient, where should the CR be directed for the lateral projection of the facial bones? zygomatic bone
with reference to the IR how should the CR be directed for the parietoacanthial projection, Waters method? perpendicular
where should the petrous ridges be seen in the image of the Waters method of the facial bones? below the maxillary sinus
which positioning line and angle indicate correct positioning of the head for the Waters method? OML, 37 degrees to the IR
which evaluation criterion pertains to the Waters method facial bones? the petrous ridges should be projected below the maxillary sinuses
which evaluation criterion pertains to the PA axial, Caldwell method facial bones? the distance between the lateral border of the skull and orbit should be the same on each side
which evaluation criterion pertains to the lateral projection of the facial bones? the orbital roofs should be superimposed
which evaluation criterion pertains to the SMV projection for bilateral zygomatic arches? the zygomatic arches should be free from overlying structures
how many degrees and in what direction should the CR be directed for an AP axial (modified townes) of bilateral zygomatic arches when the OML is perpendicular to the IR 30 degrees caudal
an AP axial modified Townes is similar to the AP axial Townes except the projection for the zygomatic arches requires that what be done? the CR is directed to the glabella
with reference to the IR, how should the midsagittal plane readjusted for the tangential projection demonstrating an individual zygomatic arch? 15 degrees from perpendicular
to demonstrate the mandibular body with the axiolateral oblique projection, how should the patient's head be positioned? from true lateral, rotate the head 30 degrees toward the IR
how many degrees and in which direction should the CR be directed for the axiolateral projection on the mandible? 25 degrees cephalic
which projection is performed with the patient's head positioned true lateral and the CR directed 25 degrees cephalic? axiolateral projection of the mandible
which evaluation criterion pertains to the axiolateral oblique projection of the mandible? the opposite side of the mandible should not overlap the ramus
which structure is of primary interest when the patient's head is rotated 15 degrees toward the IR from a true lateral position and the CR is directed 15 degrees caudal, entering about 1 1/2 inches superior to the upside EAM? TMJ
how many degrees and in which direction should the CR be directed for the axiolateral oblique projection for TMJs? 15 degrees caudal
for the AP axial projection of the TMJs, where should the CR be directed? 3 inches above the nasion
with reference to the patient, where should the IR be centered for the axiolateral oblique projection of the TMJs? 1/2 inch anterior to the EAM
which structures should always be radiographed with the patient in an upright position? paranasal sinuses
which of the following is the only projection for paranasal sinuses that adequately demonstrates all four sinus groups? lateral
with reference to the outer canthus, where should the central ray be directed for the lateral projections of the sinus? posterior
which sinus group is of primary importance in the lateral projection of the sinus? sphenoidal
which sinus groups are best demonstrated with the PA axial projection, caldwell method? frontal and anterior ethmoidal
for the PA axial, caldwell projection, which positioning line in addition to the midsagittal plane should be perpendicular to the IR? OML
where should the petrous ridges be seen in the image of the PA axial projection, caldwell method,of the sinuses? lower third of the orbits
which positioning line should form an angle of 37 degrees with the IR for the parietalacanthial projection, Waters method? OML
with reference to the IR how should the CR be directed for the waters method? perpendicular
which paranasal sinus group is best demonstrated with the waters method? maxillary sinus
where should the petrous ridges be seen in the image of the waters method? below the maxillary sinus
where should the CR exit the head for the sinus waters method? acanthion
which sinus group is not well demonstrated in the waters method? sphenoidal
which two paranasal sinus groups are better demonstrated with the SMV projection than are the other sinuses? ethmoidal and sphenoidal
which projection of the sinuses demonstrates a symmetric image of the anterior portion of the base of the skull? SMV
in which projection of the sinuses is the IR centered to the nasion? PA axial , caldwell method
in which projection of the sinuses is the mentomeatal line approximately perpendicular to the plane of the IR? waters method
in which projection of the sinuses must the OML form an angle of 15 degrees with the plane of the IR? PA axial, caldwell method
which evaluation criterion pertains to the lateral projection of the paranasal sinuses? all four sinus groups should be included, the orbital roofs should be superimposed
which evaluation criterion pertains to the cal well method of the sinuses? the frontal and ethmoidal sinuses should be seen, petrous ridges should lie on the lower third of the orbits
which evaluation criterion pertains to the waters method? petrous ridges should lie immediately below the floor of the maxillary sinuses
which evaluation criterion pertains to the SMV projection for paranasal sinuses? mental protuberance should superimpose anterior frontal bone, mandibular condyles should be anterior to the petrous ridges
Created by: taylos84