iris
biology
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Iris: the coloured part of the eye containing circular and radial muscles that control the size of the pupil.
biology
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Iris: the coloured part of the eye containing circular and radial muscles that control the size of the pupil.