The Deeper Sinuses, Particularly the Ethmoid, Are Most Commonly Involved

question 25

Multiple Choice

The deeper sinuses, particularly the ethmoid, are most commonly involved in sinus infections that are difficult to localize. A new opening can be surgically created to assist with proper drainage. Note that the maxillary sinuses, while not as deep, commonly become infected.

• A) Both statements are true.
• B) The first statement is true; the second is false.
• C) The first statement is false; the second is true.
• D) Both statements are false.

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Definitions:

Distance Cue

Visual indicators that allow a person to perceive depth or distance in their environment, such as texture gradient or aerial perspective.

Depth Perception

the visual ability to perceive the world in three dimensions, allowing for the estimation of distance.

Interposition

A visual cue that helps to perceive depth by determining that objects blocking other objects from view are closer.

Distance Cue

Visual information that helps determine the distance of an object from the observer, aiding in depth perception.