Visual System

Where does light first enter in eye?

• Lens

• Retina

• Cornea

• Pupil

What gives light its perceived color?

• Number of photons

• Refraction

• Brightness

• Wavelength

What is a function of the pupil?

• Control light entry

• Refracts light

• Acts as neural tissue

• Protective outer covering

What is common to all sensory systems?

• Optic nerves

• Stimulus

• Light

• Organs

Where are the receptor cells rods and cones located?

• Retina

• Cornea

• Pupil

• Iris

Which is good for vision in low light

• Cones

• Fovea

• Cornea

• Rods

This is a photo of?

• Rod

• Pupil

• Retina

• Cone

What is accommodation?

• Changing how much the pupil is open

• Adjusting focal distance

• Protecting the outer eye

• Sending signal to the brain