Special Senses

Cells in your eye responsible for seeing color are called:

• cones

• rods

• organ of corti

• iris cells

Referred pain occurs when:

• the brain projects pain back to the original source from which the pain originated

• pain feels like it is coming from some other part of the body than the part that is actually being stimulated

• pain becomes more tolerable over time

• external senses detect pain internally

The place on the retina where nerve fibers are attached is called the

• retina
• macula
• iris
• optic disc

Vibration of the stapes in the ear hits the ____ which then moves fluid within the inner ear.

• malleus

• incus

• auditory nerve

• oval window

Receptor cells in the organ of Corti send nerve impulses to the:

• auditory nerve

• optic nerve

• vagus nerve

• none of these

If the cornea is unevenly shaped, a person might have this disorder:

• myopia
• anaridia
• astigmatism
• retinal tear

Which part of the eye allows the lens to change shape when focusing?

• choroid coat
• circular muscles
• ciliary bodies
• extrinsic muscles

The sharpest vision occurs in the region of the retina called the:

• optic disc

• fovea centralis

• vitreous humor

• sclera

Endorphins are chemicals that are responsible for:

• seeing in color
• identifying particular tastes supressing pain
• detecting vibrations
• supressing pain

What part of the ear is responsible for our sense of equilibrium?

• cochlea

• semicircular canals

• labyrinth

• tympanic cavity