Special Senses: Eye and Ear

Rods are light sensitive cells in the retina that

• give you color vision in dim light

• respond in dim light

• give you color vision in bright light

• respond in bright light

Cones are light sensitive cells in the retina that

• give you color vision in bright light

• respond in dim light

• give you color vision in dim light

• respond in bright light

The iris in a human can be

• brown

• green

• blue

• all of the above

The optic nerve transmits signals to the

• temporal lobe

• parietal lobe

• occipital lobe

• frontal lobe

True/False: The vitreous humor helps give the cornea its rounded shape.

• True

• False

The pupil is located at the center of the

• sclera

• iris

• retina

• nothing

The vitreous humor is

• gel like and gives the eyeball its shape

• watery and gives the eyeball its shape

The blind spot is created by the

• retina

• optic nerve leaving the eye through the retina

• nothing; we don't have one

What are the functions of eyelids and eyelashes

• to protect and rehydrate the eyes

• keep dirt out of the eyes

• keep debris out of the eys

• all of the above

The human eye is surrounded by how many muscles?

• 4

• 2

• 6

• 5