Sensation: Our Visual System

Reorder the following parts involved in transduction for our visual system starting with when light waves enter the eye:

• Retina

• Rods/Cones

• Bipolar Cells

• Ganglion Cells

• Cornea/lens

The ​ (a)   focus light onto the retina at the back of the eye.

• cornea/lens
• pupil
• iris
• sclera

The retina contains photoreceptor cells (​ (a)   ) responsible for detecting light and initiating transduction.

• rods and cones
• neurons
• ganglion cells
• bipolar cells

Match the following structures to their functions

• Ganglion Cells

• Gather information from the rods and cones and pass it on

• Cones

• Form the optic nerve

• Rods

• Located in the retina; can detect only black, white, and gray

• Bipolar Cells

• Located in the retina; can detect sharp details and color

Part of the ​ (a)   , the Lateral Geniculate Nucleus (LGN) processes and relays visual information from the optic nerve to the visual cortex.

• thalamus
• cerebellum
• hippocampus
• medulla

Located in the ​ (a)   of the brain, the Primary Visual Cortex (V1) processes the basic features of the visual stimulus (e.g., orientation, movement, and edges).

• occipital lobe
• frontal lobe
• temporal lobe
• parietal lobe

Identify the part of the eye marked by the red circle.

• Cornea

• Pupil

• Blind Spot

• Fovea

Identify the part of the eye marked by the green oval.

• Cornea

• Lens

• Iris

• Retina