0
What else can I help you with?
What does the iris of the human eye do when the light is bright?
The Iris controls the size of the pupil to control the brightness of the light that's allowed to enter the eye. This is a protective measure when the light is too bright and it also opens the iris in low light situations to allow the eye to see more. Well, the iris changes the size of the pupil so when you are in bright light your pupil will get smaller because the eye will absorb all light striking it. However, when you are in a dark room or place your pupil will get bigger/wider because it has no light to absorb it so your eye wants light. For example think of the pupil trying to look for light so it has to get wider!
What are your eyeballs made out of?
I think it's actually more like a hole. "The pupil is the sphere that is located in the center of the iris of the eye and that controls the amount of light that enters the eye.[1] It appears black because most of the light entering the pupil is absorbed by the tissues inside the eye. In optical terms, the anatomical pupil is the eye's aperture and the iris is the aperture stop. The image of the pupil as seen from outside the eye is the entrance pupil, which does not exactly correspond to the location and size of the physical pupil because it is magnified by the cornea. On the inner edge lies a prominent structure, the collarette, marking the junction of the embryonic pupillary membrane covering the embryonic pupil." http://en.wikipedia.org/wiki/Pupil
In a bright light the pupil in your eye will?
When exposed to a bright light, the pupil of the human eye will contract. This action allows less light to come in contact with the lens.
How can you control the amount of light enters the lenses?
you dont have to control it they are controlled by pupil and iris
Does not having an iris effect your vision?
The iris is the colored area in the eye and is surrounded by the sclera,the white section in the human eye.The absence of iris affect vision. Its function is important because it is responsible for regulating the amount of light that enters the eye..Too much or too little light that gets into the eye hampers vision,.It controls the amount of light that enters the eye by opening and closing the pupil.
Which sphincter would close in the person who was sunbathing?
The sphincter that controls the pupil of the eye.
Where is the iris located?
The iris is the layer that surrounds the pupil and controls the size and diameter of the pupil. It also controls the amount of light that reaches the pupil.
What part of the eye controls the amount of light passing into the eye?
The iris controls the amount of light passing into the eye by adjusting the size of the pupil. In bright light, the iris contracts to make the pupil smaller, and in dim light, it dilates to make the pupil larger.
Is it possible to break your pupil?
Eye trauma can damage the muscle that controls pupil size.
What structure is the visible colored part of the eye that controls pupil dilation?
The visible colored part of the eye that controls pupil dilation is the iris. The iris regulates the size of the pupil in response to light conditions and helps to control the amount of light that enters the eye.
Is the pupillary light reflex autonomic and somatic?
Yes, the pupillary light reflex is mediated by both autonomic and somatic nervous systems. The autonomic nervous system controls the constriction of the pupil in response to light, while the somatic nervous system controls the movement of the muscles that dilate and constrict the pupil.
What contains muscle that controls the size of the pupil?
iris
What is the name of the eye that controls how much light passes through the pupil is called the?
the colored part of human eye that controls how much light passes through the pupil is called the?
What controls the size of the pupil in the human eye?
The size of the pupil in the human eye is controlled by the iris, which is a ring of muscle that can expand or contract to adjust the size of the pupil.
What controls the amount of light reaching the retina?
The iris controls the amount of light reaching the retina by adjusting the size of the pupil. In bright light, the iris contracts to make the pupil smaller, reducing the amount of light that enters the eye. In low light, the iris expands to dilate the pupil, allowing more light to enter the eye.
The colored part of the human eye that controls how much light passes through pupil is called?
the colored part of the human eye the controls how much light passes through the pupil is calles the
What part of brain controls pupil dilation?
Edinger-Westphal nucleus of the brainstem controls the pupil reflex. An ER doctor who looks at the response to a pen light is checking on brain stem activity.
