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The opening in the center of the iris is called the pupil. It regulates the amount of light that enters the eye by constricting in bright light and dilating in dim light. The size of the pupil is controlled by the muscles in the iris, which respond to various stimuli, including light intensity and emotional states.

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1w ago

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The opening in the center of the iris?

The opening in the center of the iris is called the pupil. It is responsible for controlling the amount of light that enters the eye by dilating or constricting in response to different lighting conditions. This helps to regulate the amount of light that reaches the retina at the back of the eye for optimal vision.


What is the definition for pupils referring to the eyes?

The black circular opening in the center of the iris of the eye


What structure is the opening that allows light to enter the eye?

The iris has an opening, called the pupil, through which light enters the eye.


What is the opening into the eye?

Perhaps the pupil in the middle of the iris.


At the center of the iris is a round black opening whose special muscles expand or shrink to help you focus or adjust to lighting As a biology student should know what is this opening called?

Pupil


What is a pupil reference?

The pupil is circular opening located in the center of the iris of the eye and that controls the amount of light that enters the eye.orIt can mean a student.


What is the opening that is controlled by the muscles of the iris?

The opening that is controlled by the muscles of the iris is called the pupil. The iris is responsible for adjusting the size of the pupil in response to different lighting conditions.


How does the iris control the size of the pupil?

the iris


What is dark round opening at the center of the iris which becomes smaller or bigger?

That is the pupil, which is essentially a hole in the iris that allows light to enter the eye. The pupil can change size in response to different lighting conditions and levels of arousal.


Is the pupil in your eye a hole?

They are hollow so light can pass through to the retina, so you can see. The pupil is the opening in the iris. To ask why the eyes' pupils are hollow is analogous to asking why a donut hole is hollow.


What is opening in the iris through which light passes?

The opening in the iris is called the AQUEOUS HUMOUR. :] /according to other websites\ hope it helped; had a hard time finding my answer too. xD


What do you call the hole in the center of the iris through which light can pass?

The hole in the center of the iris through which light can pass is called the pupil.