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Sentence

瞳どう孔こう括かつ約やく筋きんは、明あかるい光ひかりに反はん応のうして収しゅう縮しゅくする。

Span Details

瞳どう孔こう括かつ約やく筋きん

sphincter muscle of the pupil; sphincter pupillae

明あかるい

light; bright; well-lit

direction, time, indirect object, or target marker

反はん応のう

physical response; physiological reaction

noun, suru verb

light/support verb with a noun or noun-like phrase

-> するgrammar

収しゅう縮しゅく

contraction; shrinking; shrinkage; constriction; deflation

noun, suru verb

light/support verb with a noun or noun-like phrase