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the part of the eye that controls the pupil is the iris
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∙ 10y ago
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∙ 13y agoThe iris controls the size of the pupil; the bigger the pupil, the more light enters the retina; the smaller the pupil, the less light.
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∙ 12y agoYour iris adjusts the size of the pupil to allow intake of more or less light
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∙ 9y agoConstrictor pupillae and dilator pupillae. It is very surprising to see the pin point pupil and highly dilated pupils.
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∙ 12y agoIris i think : )
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∙ 14y agoiris
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∙ 12y agoiris
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∙ 11y agoIris
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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
What is the only body part that grows ten times it's size when excited?
The Penis, you already new the answer to this question
What is the Condition in which pupils of the eyes are a different size?
Anisocoria is a condition where the pupils of one's eyes are of two different sizes. If you were born with anisocoria and are having no other problems with your eyes, it is probably a genetic condition and nothing to worry about.
The part of the eye which decreases in size when a bright light is shone into the eye?
The pupil decreases in size to lessen the amount of light allowed in, so as to prevent damage.
What is anisocoria?
unequal pupil size
What is the name of the coloured muscular diaphragms that surround and control the size of the eyes pupil?
It's called the iris.
Colored part of the eye that contracts or relaxes in response to light?
The Iris contains the muscles that control Pupil 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
What are the rings of muscle around the pupil gives the eyes color?
it is known as Iris. contraction or relaxation of iris alters the size of pupil.
What is Adie's pupil?
Adie's pupil is a neurological condition of unknown origin with an unusual, asymmetric presentation known as anisocoria, an inequality in the size of the pupils of the eyes.
How and why does your pupil change in size?
The pupil of your eye changes (growing bigger and smaller) to control light entering the eye. This allows you to see in both bright and dim light. The muscles that control the size of the pupil are called sphincter pupillae and dilator pupillae. Your pupil increases in size when there is little to no light present, and decreases in size when more light becomes available.
Is pupil size voluntary?
Normally, no, but there are certainly people with the ability to voluntarily control it. It can be learned.
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.
Can a pupil help eyes to adjust when there is dim or bright light?
Not the pupil itself but the SIZE of it as controlled by the eye's Iris does this, it acts in a way similar to a camera's F stop iris.
How does the iris control the size of the pupil?
the iris
What part of the body can grow up to ten times its normal size?
the pupil of the eye
What could be done to increase the size of the pupil in the eye?
Shine a flashlight on it, or get your eyes dialated (it can sometimes make your vision blurry)
