dilator

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Related to dilator muscles: dilator pupillae muscle, Dilator pupillæ muscle, Iris dilator muscle
  • noun

Synonyms for dilator

a muscle or nerve that dilates or widens a body part

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a drug that causes dilation

a surgical instrument that is used to dilate or distend an opening or an organ

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References in periodicals archive ?
The negative pressure reflex describes the phenomenon whereby the genioglossus (and other upper airway dilator muscles such as the tensor palatini) is activated in response to negative pressure (i.
The intrinsic muscles are formed of a pair of dilator muscles and a pair of constrictor muscles.
Normally, the diameter of the upper airway increases during inhalation and decreases during exhalation, The changes in upper airway diameter during respiration is thought to primarily result from increased activation (during inhalation) and decreased activation (during exhalation) of pharyngeal dilator muscles such as the geniohyoid, sternohyoid, genioglossus, and stylopharyngeus muscles.
Reflex arcs involving these upper airway dilator muscles are integrated with the central mechanisms that control ventilation and breathing.
This activation increases the tone of the upper airway dilator muscles.
If there's not enough light entering your eye--the dilator muscle pulls the pupil open wider, letting in more light.