The Trichromatic Theory of Color Vision Is Based on the Idea

question 160

Multiple Choice

The trichromatic theory of color vision is based on the idea that the retina contains __________

• A) three classes of cells that alter their rates of firing according to color.
• B) three types of rods that respond to different saturation levels.
• C) rods, cones and a third type of cell called a muon that, depending upon the hue, stimulates different combinations of cones to fire.
• D) three types of cones that respond maximally to one of three colors - red, green or blue.

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Definitions:

Cerebral Spinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, acting as a cushion for the brain's cortex, providing basic mechanical and immunological protection.

Shock Absorber

A mechanical device designed to absorb and dampen shock impulses in vehicles and machinery, contributing to smoother movement.

CNS

The central nervous system, consisting of the brain and spinal cord, which processes and sends out nerve signals.

Somatic Nervous System

A section of the peripheral nervous system responsible for managing the intentional movement of the body by regulating skeletal muscles.