Skull-Facial Bones-Sinuses
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Which line is perpendicular to IR for Skull PA Caldwell | show 🗑
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| show | 15˚ caudal to exit the nasion
Alternate: 25-30˚ caudal to see sup orbital fissure, foramen rotunda and inferior orbital rim region
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| show | Lower 1/3 of the orbits
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| Which lines do we use to position the pt for Lateral Skull | show 🗑
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| CR for Lat Skull | show 🗑
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| Which structures are demonstrated in profile in a lateral skull | show 🗑
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| show | OML or IOML perpendicular to IR
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| show | OML 30˚ caudad/ IOML 37˚ caudad to a point 2.5" above the glabella (hairline)
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| Which structures are visualized in the shallow of the foramen magnum in a Skull Town's view | show 🗑
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| Best view of the skull to visualize the Occipital bone | show 🗑
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| Which part of the pt's face is touching the IR for Skull PA Caldwell | show 🗑
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| In order to project the petrous pyramids into the lower third of the orbits when obtaining a PA caldwell projection of the cranium, the central ray should be directed | show 🗑
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| show | USE THE IOML AND INCREASE CR ANGULATION BY 7 DEG
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| show | chin
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| Which set of the sinuses is projected thru the open mouth on a parietocanthial projection? | show 🗑
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| On a lateral skull the sinuses that are located posterior and below the sella tursica are the: | show 🗑
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| show | Air-fluid levels
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| show | Parietal
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| In an erect upper PA caldwell for sinuses which of the following would be angled 15 degrees? | show 🗑
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| The SMV projection requires that the IOML is placed parallel to the IR | show 🗑
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| To demonstrate the floor of the cranium, what projection/position should be used | show 🗑
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| show | Midway between the outer canthus and the EAM
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| Which variation of the PA axial projection of the skull has been performed if the petrous ridges are at the level of the supraorbital margin? | show 🗑
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| show | Ethmoid
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| show | IOML
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| show | 37˚
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| On a PA skull with no angulation the petrous pyramids are demonstrated in the | show 🗑
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| What are routine views for Skull | show 🗑
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| show | PA Axial Caldwell
Parietoacanthial (Water's)
Lateral
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| Which line do we use to position the pt for Facial Bones (Water's) | show 🗑
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| show | The Chin
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| show | CR perpendicular to exit the acanthion
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| show | Cr perpendicular to midpoint between the outer canthus and the EAM (zygoma)
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| Routine Views for Paranasal Sinuses | show 🗑
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| show | For skull the OML is perpendicular to the IR and the CR is 15˚ caudad, while for sinuses the OML is 15˚ from horizontal and the CR is perpendicular
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| CR for lateral sinuses | show 🗑
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| show | CR perpendicular to midpoint of mandibular angles (2" inferior to mandibular symphysis)
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Created by:
JenGlez