(n.) The act or process of contracting, shortening, or shrinking; the state of being contracted; as, contraction of the heart, of the pupil of the eye, or of a tendion; the contraction produced by cold.
(n.) The process of shortening an operation.
(n.) The act of incurring or becoming subject to, as liabilities, obligation, debts, etc.; the process of becoming subject to; as, the contraction of a disease.
(n.) Something contracted or abbreviated, as a word or phrase; -- as, plenipo for plenipotentiary; crim. con. for criminal conversation, etc.
(n.) The shortening of a word, or of two words, by the omission of a letter or letters, or by reducing two or more vowels or syllables to one; as, ne'er for never; can't for can not; don't for do not; it's for it is.
(n.) A marriage contract.
Example Sentences:
(1) During the performance of propulsive waves of the oesophagus the implanted vagus nerve caused clonic to tetanic contractions of the sternohyoid muscle, thus proving the oesophagomotor genesis of the reinnervating nerve fibres.
(2) But RWE admitted it had often only been able to retain customers with expired contracts by offering them new deals with more favourable conditions.
(3) Thus adrenaline, via pre- and post-junctional adrenoceptors, may contribute to enhanced vascular smooth muscle contraction, which most likely is sensitized by the elevated intracellular calcium concentration.
(4) Further, the maximal increase in force of contraction was measured using papillary muscle strips from some of these patients.
(5) When subjects centered themselves actively, or additionally, contracted trunk flexor or extensor muscles to predetermined levels of activity, no increase in trunk positioning accuracy was found.
(6) Twitch-tetanus ratios were calculated and found not to be related to unit contraction time.6.
(7) Selective removal of endothelium had no effect on BK-induced contraction or the action of the antagonists.
(8) The increased muscular strength in due to a rise of calcaemia, improved muscle contraction and probably also due to the mentioned nutritional factors.
(9) However, there was not a relationship between the contraction curve of the gallbladder and the bile flow into the duodenum.
(10) In in vitro preparations GABA (10(-7) - 10(-3) M) elicited a dose-dependent relaxation; a decrease in the spontaneous contractions was sometimes observed.
(11) There was no correlation between disturbed gastric clearance, impaired gall bladder contraction, and prolonged colonic transit time in the patients with cardiovascular autonomic neuropathy nor was there a correlation between any disturbed motor function and age or duration of diabetes.
(12) Noradrenaline decreased the phasic contraction amplitude of the circular muscle and exerted a stimulant effect on the tone which suggested an existence of two alpha 1-adrenoceptor subtypes.
(13) It may, however, be useful to compare local wall dynamics in the more isometrically-contracting basal segment with those in the middle portion which brings about most of the emptying of the ventricle.
(14) Upon depletion of ATP in contraction, the P2 intensity reverted to the original rigor level, accompanied by development of rigor tension.
(15) L-NAME abolished B contractions in a dose-dependent fashion.
(16) The power spectrum of the EMG was analyzed during isometric contractions of the shoulder muscles.
(17) A23187 had only a transient effect on KCl-contracted coronary arteries.
(18) When caffeine evokes a contraction, and only then, crayfish muscle fibers become refractory to a second challenge with caffeine for up to 20 min in the standard saline (5 mM K(o)).
(19) Dopamine at concentrations over 10(-5)M induced contractions of tracheal muscle strips and repeated exposures resulted in desensitization (tachyphylaxis) of the muscle.
(20) In the present study we examined cholecystokinin release and gallbladder contraction after oral administration of a commercial fatty meal (Sorbitract; Dagra, Diemen, The Netherlands) using ultrasonography in eight normal subjects and eight gallstone patients before and after 1 and 4 weeks of treatment with ursodeoxycholic acid (10 mg kg-1.day-1).
Peristalsis
Definition:
(n.) Peristaltic contraction or action.
Example Sentences:
(1) The goals of treatment are the restoration of normal gut peristalsis and the correction of nutritional deficiencies.
(2) Case histories of two patients with hypertensive LES and normal peristalsis in the body of the esophagus are contrasted to that of a patient with a hypertensive LES and diffuse esophageal spasm.
(3) Within 2 days after surgical correction of the bronchoesophageal fistula, peristalsis in the thoracic portion of the esophagus returned to normal and the esophagus resumed its normal size.
(4) The incidence of leakage, fistula formation, luminal stricture, peristalsis disturbance, lining loss, the quality of surface restoration, bursting strength, and wound healing were evaluated.
(5) Multiple factors contribute to the production of esophagitis in gastroesophageal reflux (GER), but the respective roles of esophageal (i. e. lower esophageal sphincter (LES) tone, peristalsis) and gastric factors (i. e. acid secretion and gastric emptying) are not well known.
(6) Peristalsis of the stomach was noted as early as 14 weeks' gestation.
(7) In conclusion, increased bolus viscosity significantly alters human esophageal peristalsis.
(8) Pressures generated by peristalsis are greater in the middle of the esophagus than at the ends.
(9) to treat a colic or to accelerate the spontaneous discharge of stones, seems to be only rarely possible: Glucagone shows a markable decrease of ureteral peristalsis in animal experiments.
(10) This represents the first reported case of return of esophageal peristalsis in idiopathic achalasia.
(11) They are involved in "receptive relaxation" of the stomach, "descending inhibition" in peristalsis and reflex relaxation of oesophageal and internal anal sphincters.
(12) 2 Some prostaglandin synthesis inhibitors, and antagonists of prostaglandin action were tested for their suitability for studying the role of prostaglandins in peristalsis.
(13) Abnormal propagation of esophageal peristalsis was seen in six patients, all of whom had moderate or severe esophagitis.
(14) We investigated the possibility that local input can modulate the basic off-response through intrinsic mechanisms and make it resemble more closely the sequential ring contractions that move boluses in the esophagus of intact animals (esophageal peristalsis).
(15) Stimulation of peristalsis or a decrease of intraluminal pressure has been described manometrically after intraluminal administration of laxatives including senna.
(16) This study examines the effect of graded doses of the H2 blocker cimetidine on acid secretion and ulcerogenesis occurring during insulin-induced peristalsis in the indomethacin (Indo) -pretreated rat.
(17) Dry swallows have little use in the current evaluation of esophageal peristalsis.
(18) The pattern of small intestinal peristalsis, presence of colonic haustra, and progressive changes in the colon's intraluminal echogenicity were also evaluated.
(19) However, despite raised intravesical pressures, peristalsis in the isoperistaltic afferent tubular segment gradually returned contrast medium back to the reservoir.
(20) Chronic ileal obstruction was apparently due to disordered peristalsis caused by the fold tethering the adjoining posterior bowel wall.