Visual Sensations

What are specialized cells that convert environmental energies into signals for the nervous system

• Stimulus

• Receptors

• Vision

• Cornea

Draw the structure of the eye and indicate where the fovea is found

Which receptor is involved in bright, colored light?

• cones

• lens

• rods

• cornea

The _____ is the layer of receptors that is located at the back surface of the eyeball.

Which eye structure enables accommodation?

• the stimulus

• the electromagnetic spectrum

• the retina

• the lens

The ____ process dim and dark light.

What forms the optic nerve?

• Cones

• The temporal lobe

• Axons from ganglion cells

• The visual pathway

Colorblindness usually involves confusion between the colors red and _____.

Which theory says color vision depends on the relative rate of response of three types of cones.

• Color vison

• The Trichomatic Theory

• The self-fulfilling prophecy

• The color theory

The visual cortex is in the ____ lobe.