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muscle of iris

^ http://purl.obolibrary.org/obo/UBERON_0001606

Synonyms: muscle organ of iris, iris muscle, iris muscle organ

Term info

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uberon_slim

UBPROP 0000008

in aves, stromal mesenchymal cells may migrate to the iris and become skeletal, The muscle cells of the iris are smooth muscle in mammals and amphibians, but are striated muscle in birds and reptiles. Many fish have neither, and, as a result, their irides are unable to dilate and contract, so that the pupil always remains of a fixed size[Romer, via WP]

editor note

revisit this, see issue #331

id

UBERON:0001606

prefLabel

Muscle of iris

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