HBS - Investigation 4: Retina

Which of these general statements about photo-receptors is most accurate?

• Both rods and cones are responsible for color vision.
• Rods send signals to the brain in bright light, and cones send signals in dim light.
• Rods and cones alternate their functions in dim and bright light.
• Rods send signals to the brain in dim light and cones send signals inbright light.

What is the main reason that we do not get color and detail information in our peripheral vision?

• The center of the retina has no cones.
• The center of the retina has no rods.
• The edges of the retina have no cones.
• The edges of the retina have no rods.

How is vision generated?

• your pupil
• your iris
• neurotransmitters
• through photo receptors in the retina.

What is the function of the retina?

• bend light so that our eyes are able to adjust in various settings.
• sends impulses to the brain for visual recognition.
• control the movement of our eyes.
• protect the eye from bacteria and debris.

What does the optic nerve do?

• Connect each eye to the visual cortex
• It allows you to sneeze
• Connect each eyeball to the seeular gland
• Makes you a wizard

Problems with the color seeing pigments in certain nerve cells of the eye cones.

• dyslexia
• blindness
• color blindness
• legal blindness

What is the point where there are no photo-receptors and is considered a "blind spot"?

• Optic nerve
• Fovea centralis
• Optic disc
• Lens

What is the innermost layer and most delicate layer of the eyeball where photo-receptors are located? 

• sclera
• cornea
• retina
• aqueaous humor

Where are the rods mostly found?

• Towards the middle of the eye
• Towards the middle part
• Towards the lateral part
• Towards the outside

The spot in the center of the retina where there are many cones is called ___________.

• the fovea 
• the plaza
• the rods
• the foyer