Which criteria indicates a properly positioned SMV projection of the skull?
the mandibular condyles are projected posterior to the petrous pyramids
the mandibular condyles are projected anterior to the petrous pyramids
the mandibular condyles are projected within the petrous pyramids
the central ray is directed midway between the mandibular rami
the mandibular condyles are projected anterior to the petrous pyramids
Rationale: Correct hyperextension of the head and neck for the SMV will be evidenced by the mandibular condyles lying anterior to the mandibular condyles. When the mandibular condyles lie within the petrous pyramids, this indicates the head was not hyperextended enough.
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