dilator muscle
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dilator muscle — ▪ anatomy any of the muscles (muscle) that widen a body part. In humans, the dilator muscle of the iris contains fibres that extend radially through the iris of the eye (eye, human) and involuntarily contract as available light decreases,… … Universalium
dilator muscle of pupil — dilator pupillae muscle musculus dilatator pupillae … Medical dictionary
Iris dilator muscle — Iris, front view. (Muscle visible but not labeled.) … Wikipedia
iris dilator muscle — noun A muscle of the eye, serving to dilate the iris. Syn: pupil dilator muscle, pupillary dilator, radial muscle of iris … Wiktionary
Dilator — is a medical term with a number of uses, including: A surgical instrument or medical implement used to induce dilation, that is, to expand an opening or passage such as the cervix, urethra, esophagus, or vaginal introitus. A pharmacological… … Wikipedia
dilator naris muscle — dilator muscle of naris pars alaris musculi nasalis … Medical dictionary
muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… … Universalium
dilator — noun 1》 (also dilator muscle) Anatomy a muscle whose contraction dilates an organ or aperture, such as the pupil of the eye. 2》 a surgical instrument for dilating a tube or cavity in the body. 3》 a vasodilatory drug … English new terms dictionary
Muscle — is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart… … Medical dictionary
Dilator naris muscle — Muscles of the head, face, and neck. Latin pars alaris musculi nasalis Gray s … Wikipedia
