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16 Cards in this Set
- Front
- Back
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Cornea |
Clear surface in front of the eye that refracts light into the pupil. |
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Retina |
Layer of specialized light sensitive cells at the back of the eye that transfer light energy to nerve impulses. |
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Pupil |
Opening of the iris which appears as a black dot, adjusts to let in more/less light. |
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Rods |
Specialized cells in the retina that allow us to see in dim light and have peripheral (side) vision. |
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Iris |
The colored ring of muscle that opens/closes the pupil. |
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Cones |
Specialized cells in the retina that allow color vision and seeing in bright light. |
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Lens |
Clear,flexible structure that focuses light waves to the back of the eye (retina). |
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Optic Nerve |
Transmits nerve impulses to the brain to be interpreted as sight. |
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Outer Ear |
"Sound Collector" made up of pinna and ear canal. |
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Ear Canal |
Funnels the sound towards the ear drum. |
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Middle Ear |
"Sound Amplifier" made up of ear drum and 3 tiny bones. |
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Pinna |
Collects sounds around us, sends them down ear canal. |
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Inner Ear |
"Sound Transmitter" made up of cochlea and auditory nerve. |
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Cochlea |
Fluid filled and lined with tiny hairs-vibrates and sends signals to auditory nerve. |
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Ear Drum |
Separates outer ear from middle ear. Sends vibrations to the 3 tiny bones. |
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Auditory Nerve |
Sends nerve impulses to brain to be interpreted as sounds. |
