Unit 5 Sensory Organs

Which of the following is not a layer of the eye?

• photo optic

• sclera

• choroid

• retina

Which layer of the eye contains the iris and the pupil?

• cornea

• sclera

• choroid

• retina

The ___ is the colored portion of the eye that controls the opening, or ___, where light passes through.

• retina; pupil

• pupil; iris

• sclera; pupil

• iris; pupil

What layer contains the actual sensory cells that respond to light?

• choroid

• retina

• conjunctiva

• sclera

What cells allow vision in low light?

• cones

• rods

• iris cells

• corneal cells

The structure that marks the end of the external ear and the beginning of the middle ear is called the

• pinna

• hammer

• tympanic membrane

• labyrinth

The structures of the ear that are important for balance are the

• ceruminous glands

• incus, malleus, and stapes

• semicircular canals

• eustachian tubes

Structure #3 refers to the circular structure that surrounds the pupil and regulates the amount of light entering the eye. Name this structure

• Cornea

• Pupil

• Retina

• Iris

Structure #1 refers to the clear tissue that covers the front of the eye. Name this structure.

• Retina

• Cornea

• Pupil

• Iris

Structure #7 refers to the part of the eye that carries visual information from the eyeball to the brain. Name this structure.

• lens

• optic nerve

• retina

• auditory nerve