What Is the Central-Ray Angulation for Demonstration of the Entire

question 174

Multiple Choice

What is the central-ray angulation for demonstration of the entire foramen magnum during an AP axial (Towne) projection?

• A) 37 degrees caudad
• B) 40 degrees caudad
• C) 60 degrees caudad
• D) 40 to 60 degrees caudad

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