Clear cover on the front of the eye.
Opening where light enters.
Muscle that controls light entry into eye.
Focuses light on retina.
Layer of receptor cells that line the back of the eye.
See in dim light. See black, white, grey.
See in bright light - color. (C for color and cones.)
Connects eye to brain.
Turns right side up. We see two images as one.
Shaped like a funnel. Sound enters outer ear, hits ear drum.
Ear drum vibrates, passes vibration to hammer, anvil, stirrup.
Inner Ear 1
Cochlea is fluid filled. Lined with receptors. Sends message to the cerebrum.
Inner Ear 2
Semi-circular canals. Sense of balance.
Inner Ear 3
Auditory nerve - transports impulse to cerebrum.