At which level should the central ray enter the base of the skull for the SMV projection of the sinuses?
A) inch posterior to the level of the EAM
B) inch anterior to the level of the EAM
C) inch below the mental protuberance
D) 1 inch below the mental protuberance

Question

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The Answer of At which level should the central ray enter the base of the skull for the SMV projection of the sinuses?
A) inch posterior to the level of the EAM
B) inch anterior to the level of the EAM
C) inch below the mental protuberance
D) 1 inch below the mental protuberance

At Which Level Should the Central Ray Enter the Base