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For a Lateral Projection of the Paranasal Sinuses,the Central Ray

Question 24

Multiple Choice

For a lateral projection of the paranasal sinuses,the central ray is directed:

A) 1 inch posterior to the outer canthus.
B) 2 inches posterior to the outer canthus.
C) 1 inch anterior to the EAM.
D) 2 inches anterior to the EAM.

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