Grunert spur

Gru·nert spur

(grū'nĕrt),

epithelial outgrowth of the dilator muscle of the pupil at the junction of the iris and the ciliary body; part of the origin of the iris dilator muscle.

Gru·nert spur

(grū'nĕrt spŭr)

Epithelial outgrowth of the dilator muscle of the pupil at the junction of the iris and the ciliary body; part of the origin of the iris dilator muscle.