Skull Self test
Terms
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- which positioning line extends from the EAM to the outer canthus
- OML
- which positioning landmark is located at the base of the nasal spine
- acanthion
- which positioning landmark is located at the most superior point of the nasal bones
- nasion
- which positioning landmark is the smooth elevation that is located between the superciliary arches
- glabella
- which positioning landmarks most superior
- glabella
- where on this:is the gonion located
- on the lateroposterior part of the mandible
- where on the skull is the outer canthus located
- on the lateral border of each orbit
- which 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 joins both parietal bones at the vertex of the skull?
- sagittal
- which sutured joins a parietal bone with both a sphenoid bone and the temporal bone?
- Squamosal
- which suture joins both parietal bones with the occipital bone?
- Lambdoidal
- the bregma fontanel is located at the junction of which two sutures?
- coronal and sagittal
- the lambda fontanel is located at the junction of which two sutures?
- Lambdoidal and sagittal
- the bregma fontanel is located at the junction of which cranial bones?
- occipital and both parietals
- which skull classification refers to a typical skull?
- mesocephalic
- which skull classification refers to a long, narrow skull?
- dolichocephalic
- which skull classification refers to a short, wide skull?
- brachycephalic
- how many degrees are in the angle formed between the midsagittal plane and the petrous pyramids in the mesocephalic skull?
- 47 degrees
- how many degrees are in the angle formed between the midsagittal plane and the petrous pyramids in the brachycephalic skull?
- 54 degrees
- how many degrees are in the angle formed between the mid sagittal plane and the petrous pyramids in the dolichocephalic skull?
- 40 degrees
- on whichcranial bones are the superciliary arches located?
- frontal
- on which cranial bone is the cribiform plate located?
- ethmoid
- on which cranial boneis the crista Galli located?
- ethmoid
- which cranial bone has a petrous pyramid?
- temporal
- on which cranial boneis the sella turcica located?
- sphenoid
- which cranial bone has the mastoid process?
- temporal
- on 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
- the foramen magnum is a part of which cranial bone
- occipital
- from which cranial bone does the zygomatic process arise?
- temporal
- the external acoustic meatus is a part of which cranial bone?
- temporal
- the temporal process projects posteriorly from which facial bone?
- zygoma
- which bones comprise the bridge of the nose?
- nasal
- 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 bone found?
- on the floor of the nasal cavity
- which bone comprises the most 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 and mandible
- which bones formed the posterior 1/4 of the roof of the mouth?
- Palatine
- which positioning landmarks located on the maxillae?
- acanthion
- which to positioning lines or planes should be perpendicular to the IR for the PA projection of the skull?
- OML and MSP
- with reference to the patient,where should the IR 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" above the EAM
- with reference to the IR, how should the interpupillary line and the MSP be positioned for the lateral projection of the skull?
- IPâ”´, MSP II
- for the AP axial projection, Towne method, of the skull, how many degrees and in which direction should the central ray directed when the OML is perpendicular to the IR?
- 30 caudad
- for the AP axial projection, Towne method, of the skull, how many degrees and in which direction should the central ray directed when the IOML is perpendicular to the IR?
- 37caudad
- which positioning line should be parallel with the IR for the SMV projection of the skull?
- IOML
- which projection of 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 central ray angled 15 degrees?
- PA axial, Caldwell method
- which projection of the skull produces a full basal image of the cranium?
- SMV
- 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 â”´ CR
- 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
- for the PA axial projection, Haas method, of the skull, where should the central ray enter the patient's head
- one in the half inches below the external occipital protuberance
- how many degrees and in which direction should the central ray directed for the PA axial projection, Haas method, of the skull?
- 25 cephalic
- for the parietoorbital oblique projection, Rhese method, of the skull, which positioning line should be perpendicular to the IR?
- AML
- For the orbitoparietal oblique projection, Rhese method, of the skull, which positioning line should be perpendicular to the IR?
- AML
- with reference to the orbit, where should the optic foramenPA mentioned on the radiograph to indicate correct positioning of the patient for the parietoorbital oblique projection, Rhese method, of the skull?
- within the lower outer quadrant
- for the parietoorbital oblique projection, Rhese method, of the skull, how many degrees of an angle should be formed between the MSP and the IR?
- 53 degrees
- with reference to the IR, how should the interpupillary line and the MSP be positioned for the lateral projection to demonstrate the sella turcica?
- IPâ”´, MSP II
- for the lateral projection to demonstrate the sella turcica, where should the central ray directed?
- 3/4" anterior and 3/4" superior to the EAM