Structure and function of the human eye. Processing of visual stimuli.
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Created by:
kellyglover on January 18, 2012
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Description:
What does each part of the eye do? How do we process what we say? Rods and cones!
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30 terms
Terms | Definitions |
|---|---|
 Regulating the size of the pupil. | What is the iris responsible for? |
| Admitting light. | What is the pupil responsible for? |
| It has photoreceptors for vision | What is the retina responsible for? |
| They support the eyeball. | What are the aqeous and vitreous humour responsible for? |
| They allow black and white vision in dim light. | What are rods responsible for? |
| They allow colour vision in bright light. | What are cones responsible for? |
| It is an area of densely packed cone cells where vision is most accurate. | What is the fovea responsible for? |
| It focuses light rays. | What is the lens responsible for? |
| It protects and supports the eyeball. | What is the sclera responsible for? |
| Focusing begins here. | What is the cornea responsible for? |
| It absorbs stray light. | What is the choroid responsible for? |
| It keeps the eye moist. | What is the conjunctiva responsible for? |
| It transmits messages to the brain. | What is the optic nerve responsible for? |
| It protects the eye. | What is the eyelid responsible for? |
| They synapse with a bipolar neurone. | What happens when rod/cone cells receive a stimulus? |
| The ganglion cell of the optic nerve. | Where does the bipolar neurone carry impulses to? |
| The Brain | Where do the ganglion cells of the optic nerve carry impulses to? |
| Dim light | What are rod cells sensitive to? |
| One. | How many types of rod are found in the retina? |
| Bright light. | What are cone cells sensitive to? |
| Three. | How many types of cone cell are found in the retina? |
| Several | The impulses from how many rod cells pass to a single nerve fibre in the optic nerve? |
| One. | The impulses from how many cone cells pass to a single nerve fibre in the optic nerve? |
| There are fewer light sensitive cells here. | According to edge enhancement, why do you see grey in your peripheral vision? |
| You are using your fovea, which has a high concentration of light senitive cells. | Why, when you try to look at the grey areas in a Hermann grid can you only see white? |
| The optic chiasma. | What is contralateral processing due to? |
| In the left side of the brain. | Where is information from the right half of the visual field processed? |
| In the right side of the brain. | Where is information from the left half of the visual field processed? |
| It is inverted and reversed. | What is wrong with the image received by the visual cortex? |
| The Cerebral Cortex. | What part of the brain builds up a complete visual image? |
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