dilator

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

dilator

 [di-la´ter]
a structure (muscle) that dilates, or an instrument used to dilate.

di·la·tor

(dī'lā-tŏr), This abridgment of dilatator is not correct Latin and is not recognized in TA.
1. An instrument designed to enlarge a hollow structure or opening.
See also: bougie.
2. A muscle that pulls open an orifice.
See also: bougie.
3. A substance that causes dilation or enlargement of an opening or the lumen of a hollow structure.
See also: bougie.
Synonym(s): dilatator

dilator

/di·la·tor/ (di-lāt´er)
1. a structure that dilates, or an instrument used to dilate.

dilator

(dī-lā′tər, dī′lā′-, dĭ-lā′-)
n.
1. A muscle that dilates a body part, such as a blood vessel or the pupil of the eye.
2. An instrument that dilates a body part, such as a cavity, canal, or orifice.

dilator

[dī′lātər]
Etymology: L, dilatare, to widen
a device for expanding a body opening or cavity. Examples include a tent dilator, consisting of a sponge or bundle of seaweed that expands the cervical os, and a Barnes' bag (dilator), a rubber bag that can be inserted into a body cavity and filled with water to produce pressure on the cavity walls.

dilator

Therapeutics A device used to stretch/enlarge an opening or tubular structure–eg, esophagus, to allow the passage of food. See Bougienage.

di·la·tor

(dī'lā-tŏr)
1. An instrument designed for enlarging a hollow structure or opening.
2. A muscle that pulls open an orifice.
3. A substance that causes dilation or enlargement of an opening or the lumen of a hollow structure.

dilator

Any instrument used to widen or enlarge an opening, orifice or passage. Dilators are extensively used in surgery.

dilator

  1. a muscle whose contraction opens an aperture or orifice; an example is the dilator muscle of the eye.
  2. a drug whose effect is the expansion of a structure.

di·la·tor

(dī'lā-tŏr)
See: dilatator.

dilator

a structure (muscle) that dilates, or an instrument used to dilate.

dilator pupillae muscle
dilator muscle of the pupil.
References in periodicals archive ?
Upper airway dilator muscle activity and recruitability
2] and negative pressure to accumulate sufficiently to augment dilator muscle activity yielding improvements in pharyngeal patency.
Following arousal from sleep, augmented pharyngeal dilator muscle activity and a robust ventilatory response to arousal generally occur (Fig.
the dogs had no dilator muscle activity), During the apneic episode, he stimulated the dogs' phrenic nerve to trigger diaphragmatic contractions; each contraction caused the dog to inhale.
He concluded from these results that 1) upper airway patency is possible even in the absence of dilator muscle activity meaning that these muscles are not the only factor in upper airway collapse and 2) thoracic forces which pull on the trachea play a role in upper airway patency.