When You Walk into a Dark Room, the _____ Smooth

question 4

Multiple Choice

When you walk into a dark room, the _____ smooth muscles of the iris ____ the pupil of your eye.

• A) radial; dilate
• B) radial; constrict
• C) circular; dilate
• D) circular; constrict
• E) papillary; constrict

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Definitions:

Relative Luminance

A measure of the brightness of a color or light source in comparison to a reference white or bright source under identical viewing conditions.

Perceptual Organization

The psychological processes that enable individuals to perceive patterns, and structure in the environment, making sense of the world through visual, auditory, and other sensory information.

Visual Cortex

The part of the cerebral cortex that receives and processes sensory nerve impulses from the eyes.

Cataracts

A medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision.