When the patient is upright,the sagittal plane of the neck and head are parallel to the IR,and the central ray is directed perpendicular to C4,the resulting radiograph is a(n):

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When the patient is upright, the sagittal plane of the neck and head parallel to the image receptor (IR), and the central ray is directed perpendicular to the C4 vertebra, the positioning described is for a lateral projection of the cervical spine. This is a common technique used to visualize the cervical vertebrae in a side view.

When the Patient Is Upright,the Sagittal Plane of the Neck