A Radiograph of an AP Open-Mouth Projection of the Cervical

question 33

Multiple Choice

A radiograph of an AP open-mouth projection of the cervical spine reveals that the zygapophyseal joints are not symmetric.No fracture or subluxation is present.Which one of the following positioning errors most likely led to this radiographic outcome?

• A)Excessive CR angulation
• B)Insufficient CR angulation
• C)Rotation of the spine
• D)Excessive flexion of the head

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