loading...| Preferred Name |
iris |
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| Synonyms |
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| Definitions |
The circular pigmented membrane behind the cornea, perforated by the pupil; the most anterior portion of the vascular tunic of the eye, it is made up of a flat bar of circular muscular fibers surrounding the pupil, a thin layer of smooth muscle fibers by which the pupil is dilated, thus regulating the amount of light entering the eye, and posteriorly two layers of pigmented epithelial cells. |
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| ID |
http://purl.obolibrary.org/obo/BTO_0000653 |
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| definition |
The circular pigmented membrane behind the cornea, perforated by the pupil; the most anterior portion of the vascular tunic of the eye, it is made up of a flat bar of circular muscular fibers surrounding the pupil, a thin layer of smooth muscle fibers by which the pupil is dilated, thus regulating the amount of light entering the eye, and posteriorly two layers of pigmented epithelial cells. |
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| has_obo_namespace |
BrendaTissueOBO |
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| id |
BTO:0000653 |
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| label |
iris |
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| notation |
BTO:0000653 |
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| part_of | ||
| prefLabel |
iris |
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| treeView |