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Skull, Sinus, Facial

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
show 0 degrees  
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For the PA projection of the skull, where is the exit point?   show
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show 30 degrees cuadad  
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show 2 1/2 inches above the glabella; near or on the hairline of the pt.  
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Where is the petrous ridges located in a PA projection of the skull?   show
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show Hass  
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What is the CR angulation for the PA Caldwell projection?   show
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What is the exit point for the PA Caldwell projection?   show
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show In the lower 1/3 of the orbits  
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What is perpendiular to the IR for the Waters view?   show
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show The Waters view  
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Where is the petrous ridges located for the Waters view?   show
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show The LML (Lip Meatal Line)  
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Where is the petrous ridges located in the Modified Waters view?   show
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Which bone has the ethmoid notch?   show
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What is the mipoint betwen the eyebrows?   show
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What are the names of the articulations in the skull?   show
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What suture seperates the frontal bone and the parietal bones?   show
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What suture seperates the two parietal bones?   show
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What suture seperates the temporal and parietal bones?   show
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show The lambdoidal sututre  
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show No CR angulations; use a 15 degree sponge instead  
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What projection best shows all sinuses?   show
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show The zygoma, midway between the outer canthus and the EAM  
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show A horizontl beam  
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What must touch the IR for a Rheese projection of the orbits?   show
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show Occipital Bone Petrous Pyramid Dorsum Sellae Posterior Clenoids Foramen Magnum  
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What anatomy is shown in the Caldwell projection?   show
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What anatomy is shown in the SMV projection?   show
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show The occipital condyles  
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show Temporal  
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show Temporal and Zygomatic bone  
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Which cranial bone anchors the wall for all of the cranial bones?   show
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Which part of the spenoid bones is used tosupport the pons?   show
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Where are the sinuses located in the ethmoid bone?   show
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show The perpendicular plate  
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show Basal Skull Fx  
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A Caldwell projection was performed and the petrous ridges are filled in the orbits. What adjustemnts should be made?   show
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What struture should be projected within the shadow of the foreamen magnum on a well positined AP axial (Townes) projection of the skull?   show
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On an AP axial projection of the skull, the dorsum sellae is shown below the foramen magnum and the posterior arch of C1 is visible in the foramen magnum. What is the positioning error?   show
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