dilator muscle


di·la·tor mus·cle

[TA] a muscle that opens an orifice or dilates the lumen of an organ; it is the dilating or opening component of a pylorus (the other component is the sphincter muscle). Synonym(s): musculus dilatator [TA]

di·la·tor mus·cle

(dī'lā-tŏr mŭs'ĕl) [TA] A muscle that opens an orifice or dilates the lumen of an organ; it is the dilating or opening component of a pylorus (the other component is the sphincter muscle).