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What happens to a person's eyes when he or she is afraid?
i think they go big. The pupil will enlarge 2 times their size.
How is the Nerve impulse responsible for the pupil becoming smaller?
Pupil is a window for the light to enter our eyes. When we are in a dim light a nerve impulse is generated to the brain to enlarge the pupil. Size of pupil is managed by the iris (coloured part of the eye). If excessive light is there, the pupil shrinks to a smaller size so that the eye's not damaged esp. the retina where the image of objects are formed
Why do eyes need bright and dim light?
Eyes do not need bright and dim light - although the iris (colored part of the eye) and pupil (black center of the eye) function differently under these circumstances. In bright light, the muscles in the iris contract to make the pupil smaller. In dim light, the iris makes the pupil enlarge to allow as much of the scarce light as possible.
Which part of the eye becomes narrower in bright light?
The pupil narrows in bright light to restrict the amount of light coming in. In low light conditions it will enlarge to allow more light in for greater vision.
What is the possessive noun for pupil?
Pupil's The pupil's mother came to school.
How does vision work?
When light rays pass through your pupil, the muscle called the iris (colored ring) makes the size of the pupil change depending on the amount of light that's available. You may have noticed this with your own eye if you have looked at it closely in a mirror. If there is too much light, your pupil will shrink to limit the number of light rays that enter. Likewise, if there is very little light available, the pupil will enlarge to let in as many light rays as it can. Just behind the pupil is the lens and it focuses the image through a jelly-like substance called the vitreous humor onto the back surface of the eyeball, called the retina.
What is the black hole in the center of the iris?
The black circle in the middle of the iris in your eye is called a pupil. It dilates to adjust with sunlight.
What is a sentence with enlarge in it?
I am hoping to enlarge this photograph.
What is the homograph word for pupil?
A homograph for "pupil" is "pupil," which can also refer to the small, dark hole in the center of the eye.
The opening through which light enters the eye?
The pupil allows light to enter the eye.
How do you put enlarge in a sentence?
I want to enlarge this photograph.
What is the apostrophe of pupil Questions?
The word pupil is a common singular noun. It requires no apostrophe.The pupil looked bored.If the word pupil has a possession or belonging, it needs an apostrophe.The pupil's questions challenged me.The principal was amazed at the pupil's insightful questions.
