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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Definitions:

Uric Acid

A chemical created when the body breaks down substances called purines, high levels of which can lead to gout and other health problems.

Waste Products

Materials or substances that are no longer useful or desired and are intended to be discarded.

Metabolic Wastes

Substances left over from metabolic processes, such as carbon dioxide, water, and nitrogenous compounds, that need to be excreted from the body.