★ Upper Limb Quiz
Where is the central ray (CR) placed for a PA projection of the third digit?
A. At the Distal interphalangeal joint
B. At the Interphalangeal joint
C. At the proximal interphalangeal joint
D. At the third MCP
Preview next quiz:
A general positioning rule is to place the long axis of the part ____ to the long axis of the image receptor.
A. Oblique for better positioning
B. Parrallel
C. Parrallel and perpendicular
D. It’s this one.. trust me
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