iris dilator muscle

A muscle of the eye, serving to dilate the iris.

Japanese Meaning

虹彩散大筋

During the eye examination, the doctor tested the reflex of the iris dilator muscle to evaluate autonomic function.

眼科検査の際、医師は自律神経の機能を評価するために瞳孔散大筋の反射を調べた。

Sense（1）

A muscle of the eye, serving to dilate the iris.

iris dilator muscles

（ plural ）