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loading...| Preferred Name |
dilatator pupillae |
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| Synonyms |
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| ID |
http://purl.obolibrary.org/obo/UBERON_0001608 |
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| depicted_by |
http://upload.wikimedia.org/wikipedia/commons/2/2f/Gray878.png |
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| develops_from | ||
| has muscle antagonist | ||
| has muscle insertion | ||
| has muscle origin | ||
| label |
dilatator pupillae |
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| part_of | ||
| prefixIRI |
UBERON:0001608 |
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| prefLabel |
dilatator pupillae |
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| treeView | ||
| UBPROP_0000009 |
It is innervated by the sympathetic system, which acts by releasing noradrenaline, which acts on alpha1-receptors. Thus, when presented with a threatening stimuli that activates the fight-or-flight response, this innervation dilates the iris, thus temporarily letting more light reach the retina |
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| subClassOf |
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