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Capitán Bastos

Presanteur
"The iris sphincter muscle (pupillary sphincter, pupillary constrictor, circular muscle of iris, circular fibers) is a muscle in the part of the eye called the [[Iris Hasini (anatomy)|iris]]. It encircles the pupil of the iris, appropriate to its function as a constrictor of the pupil."
https://en.wikipedia.org/wiki/Iris_sphincter_muscle
I read "Irish sphincter", so now I got a lot of disturbing visuals of Irish pupils being constricted by their Irish sphincters.
"Fecking ejits with their heads up their arses.." - the professor sighed
 
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