Which of the Following Is a Housekeeping Surface Rather That

question 35

Multiple Choice

Which of the following is a housekeeping surface rather that a clinical contact surface and does not have to be covered or routinely cleaned and disinfected between each patient?

• A)Light handles on the dental unit
• B)Wall next to the dental chair
• C)Switch that controls the hand pieces
• D)Radiographic equipment

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Definitions:

Motion Parallax

A depth cue that involves images of objects at different distances moving across the retina at different rates when the observer is in motion.

Relative Size

A perceptual cue that allows the interpretation of the size of an object in comparison to another, contributing to depth perception.

Texture Gradient

A visual cue that refers to the gradual reduction of detail that occurs in surfaces as they recede from the observer, contributing to the perception of depth.

Convergence

The coming together of different factors or phenomena to form a unified whole, or the ability of the eyes to move inward together to focus on an object.