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Aug 8, 2022 · The iris is a circular, colored structure that sits in front of the lens within the coronal plane towards the front of the eye. Unbound in its middle to allow the pupil to change size, this structure is connected to the ciliary body—the part of the eye that produces the eye’s fluid (aqueous humor) and regulates contraction and constriction ...
Apr 11, 2024 · iris, (genus Iris ), genus of about 300 species of flowering plants, including some of the world’s most popular and varied garden flowers. The diversity of the genus is centerd in the north temperate zone, though some of its most handsome species are native to the Mediterranean and central Asian areas.
Iris is a flowering plant genus of 310 accepted species with showy flowers. As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera.
iris, in anatomy, the colored muscular part of the eye surrounding the pupil, the small black opening in the center. The iris is located in front of the lens and behind the cornea. It is bathed in front and behind by a fluid known as the aqueous humor.
The iris ( pl.: irides or irises) is a thin, annular structure in the eye in most mammals and birds, responsible for controlling the diameter and size of the pupil, and thus the amount of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm. Eye color is defined by the iris. Etymology.
What is the iris of the eye? The iris is the colored part of your eye. Muscles in your iris control your pupil — the small black opening that lets light into your eye. The color of your iris is like your fingerprint. It’s unique to you, and nobody else in the world has the exact same colored eye. Advertisement.
Jun 12, 2023 · The iris is the circular coloured part of the eye. It is part of the vascular layer of the eye - the other two components are the choroid and the ciliary body. The central opening of the iris is the pupil. Within the iris there are smooth muscle fibers that control the size of the pupil.
