(n.) To make lax or loose; to make less close, firm, rigid, tense, or the like; to slacken; to loosen; to open; as, to relax a rope or cord; to relax the muscles or sinews.
(n.) To make less severe or rigorous; to abate the stringency of; to remit in respect to strenuousness, earnestness, or effort; as, to relax discipline; to relax one's attention or endeavors.
(n.) Hence, to relieve from attention or effort; to ease; to recreate; to divert; as, amusement relaxes the mind.
(n.) To relieve from constipation; to loosen; to open; as, an aperient relaxes the bowels.
(v. i.) To become lax, weak, or loose; as, to let one's grasp relax.
(v. i.) To abate in severity; to become less rigorous.
(v. i.) To remit attention or effort; to become less diligent; to unbend; as, to relax in study.
(n.) Relaxation.
(a.) Relaxed; lax; hence, remiss; careless.
Example Sentences:
(1) The vascular endothelium is capable of regulating tissue perfusion by the release of endothelium-derived relaxing factor to modulate vasomotor tone of the resistance vasculature.
(2) Arteries treated with atrial natriuretic peptide showed no alterations in relaxation or cGMP content after incubation with pertussis toxin.
(3) For dental procedures requiring tracheal intubation, one could perhaps use non-depolarizing muscle relaxants, like pancuronium, with reversal at the end of the procedure.
(4) In in vitro preparations GABA (10(-7) - 10(-3) M) elicited a dose-dependent relaxation; a decrease in the spontaneous contractions was sometimes observed.
(5) Anaesthesia was achieved by a mixture of oxygen, nitrous oxide and fluothane without use of muscle relaxants.
(6) A more accurate fit of T1 data using a modified Lipari and Szabo approach indicates that internal fast motions dominate the T1 relaxation in glycogen.
(7) Endothelium-dependent relaxations to acetylcholine and endothelium-independent relaxations to nitric oxide were observed in rings from both strains during contraction with endothelin.
(8) Relaxation situations are marked by relaxation, usually after a meal.
(9) The rabbits were either breathing spontaneously or were ventilated by a phrenic nerve-controlled servorespirator without the use of muscle relaxants.
(10) For each RG patient, two sex, age, and initial diastolic blood pressure (DBP) matched controls were found, obtaining thus a control group (CG) consisting of 70 hypertensive patients who were not participating in any relaxation program.
(11) Under the condition in which ryanodine (10-100 microM) treatment was found to cause the SR to be nonfunctional, pinacidil relaxation DRC remained unaltered, suggesting a lack of a stimulatory effect of pinacidil on SR Ca++ accumulation.
(12) which suggest that ~60-90% of the cross-bridges attached in rigor are attached in relaxed fibers at an ionic strength of 20 mM and ~2-10% of this number of cross-bridges are attached in a relaxed fiber at an ionic strength of 170 mM.
(13) Trimazosin at the dose used and under the conditions of study did not reverse the peripheral pressor effect of angiotensin II or B-HT920 but at higher concentrations, unlike prazosin, it relaxed the K+ contracted thoracic aorta.
(14) The relaxations in response to a nonreceptor-mediated endothelium-dependent vasodilator, A23187, and an endothelium-independent vasodilator, sodium nitroprusside, were not different between normal and diabetic aortas.
(15) Nitric oxide (NO) is a major component of endothelium-derived relaxing factor (EDRF) the synthesis of which from L-arginine can be inhibited by NG-monomethyl-L-arginine (L-NMMA).
(16) Binding to HSA occurs primarily with the imidazolidine and thiazolidine groups of levamisole as it has been demonstrated by selective changes in the relaxation times and the chemical shifts of the protons attached to the carbon atoms.
(17) We conclude that gastric adaptive relaxation remains abnormal in patients with postvagotomy diarrhoea but not in those who are asymptomatic or who have other symptoms.
(18) Nitric oxide (NO) induced tetrodotoxin-resistant NANC relaxation, similar to that induced by electrical stimulation or acetylcholine (ACh).
(19) Treatment of bacterial cells with inhibitors of gyrase at high concentration leads to relaxation of DNA supercoils, presumably through interference with the supercoiling activity of gyrase.
(20) The kinetics of extracellular neutral proteinase synthesis by an isogenic stringent (IS58) and a relaxed (IS56) strain of B. subtilis were compared.
Sphincter
Definition:
(n.) A muscle which surrounds, and by its contraction tends to close, a natural opening; as, the sphincter of the bladder.
(a.) Of, pertaining to, or designating, a sphincter; as, a sphincter muscle.
Example Sentences:
(1) We suggest that neuronal PACAP may serve to modulate motor activity and secretion in the lower esophageal sphincter region.
(2) Although it is known that the sphincter of Oddi exhibits a myoelectric response to intraluminal nutrients, the effect of specific dietary components has not been well characterized.
(3) Fourteen patients were examined one to four years after cricopharyngeal myotomy that had been carried out because of dysfunction of the pharyngo-esophageal sphincter.
(4) The paper postulates that 'anal or sphincter defensiveness' is one of the precursors of the repression barrier.
(5) In 36 patients plastic reconstruction of the urinary bladder, sphincter and urethra was performed with local tissues after the Young technic in the G. A. Bairov modification.
(6) 12 children (38%) showed modifications of bladder-sphincter equilibrium, without acquiring socially sufficient continence.
(7) We found that in the patient's view an adequate result requires establishment of a proper lip sphincter--either by restoring muscular tone, or by creating an anatomical framework to which can be added either a motor unit or stabilization to aid the opposite intact muscle.
(8) Extensive drainage procedures were avoided to preserve the anal sphincter.
(9) Changes in pupil size indicated a substantial cholinergic effect on the iridal sphincter musculature.
(10) The dumping-syndrome is a severe complication of gastric surgery after operations which destroy or weaken the sphincter mechanism of the pylorus.
(11) This appears to be caused by persistent reflux of gastric juice across a mechanically defective lower esophageal sphincter.
(12) During phase III of the interdigestive period maximal frequency of sphincter of Oddi phasic contractions blocks bile flow into the duodenum.
(13) Preliminary electromyography showed the external sphincter to be displaced from the anus in nine patients.
(14) Using concurrent videoendoscopy and manometry, glottal and upper esophageal sphincter (UES) responses to abrupt esophageal distention by air injection (10-60 mL) and balloon distention (1.5, 2.0, and 2.5 cm) were recorded simultaneously.
(15) 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.
(16) Pyloric sphincter pressure was assessed with water-perfused polyvinyl tubes.
(17) The frequent occurrence of delayed drainage in these asymptomatic post-cholecystectomy volunteers challenges the validity of the 45-min delayed drainage criterion for sphincter of Oddi dysfunction.
(18) Concurrent sphincteric incontinence and organic impotence are not uncommon; they can be caused by many congenital and acquired conditions.
(19) In both normals and patients, amplitude and duration of contractions were more at 5 cm than at 10 cm above the lower esophageal sphincter.
(20) This improvement in continence was not associated with any change in sphincter pressures or in the continence to rectally infused saline but was associated with significant improvements in rectal sensation.