What's the difference between constriction and spasm?

Constriction


Definition:

  • (n.) The act of constricting by means of some inherent power or by movement or change in the thing itself, as distinguished from compression.
  • (n.) The state of being constricted; the point where a thing is constricted; a narrowing or binding.

Example Sentences:

  • (1) There were two recurrent P. (1 Tbc, 1 viral) and no recurrent constriction.
  • (2) L660,711 had no significant effects on epinephrine- or vasopressin-induced arteriolar constriction.
  • (3) Myogenic constrictions and dilations was observed when IP was increased (greater than 60 cmH2O) and decreased (less than 60 cmH2O), respectively.
  • (4) Baroreflex function was studied in conscious early phase (less than 6 weeks) two-kidney, one-clip hypertensive rats before and 24 hours after surgical reversal of hypertension by removal of the constricting renal artery clip or after pharmacological reduction of blood pressure by an infusion of hydralazine or captopril.
  • (5) A series of hierarchical multiple regressions revealed the effects of Surgency, Agreeableness, Conscientiousness, Emotional Stability, and Intellect on evoking upset in spouses through condescension (e.g., treating spouse as stupid or inferior), possessiveness (demanding too much time and attention), abuse (slapping spouse), unfaithfulness (having sex with others), inconsiderateness (leaving toilet seat up), moodiness (crying a lot), alcohol abuse (drinking too much alcohol), emotional constriction (hiding emotions to act tough), and self-centeredness (acting selfishly).
  • (6) Neither the first- (A1) or second-order arterioles (A2) nor the first- (V1) or second-order venules (V2) constricted significantly to angiotensin II.
  • (7) When the same dose of ISO was administered to rats with aortic constriction the rise in labelled Ca uptake by the hypertrophied myocardium of the left ventricle was greatly reduced.
  • (8) We studied DNA (mtDNA) replication in adult female rat hearts undergoing hypertrophy secondary to constriction of the ascending aorta.
  • (9) 6 patients had thickened pericardium, and 3 had constrictive features.
  • (10) Clonidine and methysergide constrict the rabbit auricular artery by activating smooth muscle alpha-adrenoceptors.
  • (11) Electron microscopy in one case demonstrated typical intraneuronal accumulations of neurofilaments with regular constrictions.
  • (12) The rise in pressure approximated the sum of the rises caused by removal of the papilla alone and by renal artery constriction alone, consistent with the idea of two mechanisms being at work in this model.
  • (13) Transient peripheral vasomotor constriction and heart rate increases were initiated within an 8- to 12-sec period following target detection with the predictable schedule, with subjects evincing greater responsivity than their nonpredictable schedule counterparts.
  • (14) Data are constricted by the movement out of the area in the end stage of disease, which is only partially solved by tracking with community health workers.
  • (15) The in vivo synthesis rates of myosin isozyme heavy chains beta and alpha were measured in right ventricular (RV) muscle at 2 and 4 days following pulmonary artery constriction in rabbits, together with measurements of their relative mRNA levels.
  • (16) Aspiration is prevented by constriction of the thyroarytenoid muscle which provides a valved upper end of the tube.
  • (17) When tested in the guinea pig, 2a exhibited no effects on blood pressure and no broncho-constriction or dilation activity.
  • (18) However, certain other echocardiographic abnormalities of left ventricular posterior wall motion and interventricular septal motion and a high E-Fo slope were suggestive of constriction.
  • (19) The left anterior descending coronary artery of dogs and the right common carotid artery of rabbits were subjected to partial constriction with suture thread (40-60% reduction in transluminal diameter).
  • (20) A previously described laminectomy technique was modified by the addition of spinal plating to avoid the occurrence of constrictive fibrosis.

Spasm


Definition:

  • (v. t.) An involuntary and unnatural contraction of one or more muscles or muscular fibers.
  • (v. t.) A sudden, violent, and temporary effort or emotion; as, a spasm of repentance.

Example Sentences:

  • (1) The generally accepted hypothesis is a coronary spasm but a direct cardiotoxicity of 5-FU cannot be.
  • (2) Oculomotor paresis with cyclic spasms is a rare syndrome, usually noticeable at birth or developing during the first year of life.
  • (3) The ophthalmic headache's crisis is caused, in fact, by a spasm of convergence on an unknown exophory of which the amplitude of fusion is satisfying, and the presence of which can only be seen with test under screen.
  • (4) The present case indicates that the possibility of osseous spines impinging on the facial nerve should be considered in all cases of facial spasm.
  • (5) The coronary arteriography reveals a spasm in the normal left anterior descendens artery.
  • (6) Increasing awareness of disorders such as coronary arterial spasm, functional impairment of subendocardial blood flow and the possible role of variant patterns of anatomic distribution of the coronary arterial tree, will provide a better understanding of their significance as determining or contributing factors in patients with the anginal syndrome.
  • (7) Thus one may speculate that endothelin plays a role in the coronary spasm which has been shown in patients with angina pectoris.
  • (8) in 1937, the arterial spasm may have occurred at the time of cerebral embolism.
  • (9) Coronary spasm was provoked by ergonovine maleate in four of 12 patients in group A (33%) and in three patients in group B (18%).
  • (10) In 2 cases, sublingual nitroglycerin failed to completely relieve the spasm.
  • (11) Furthermore, an association of tiapride-corticoids was effective in treating post-anaesthetic spasm of the glottis.
  • (12) 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.
  • (13) Whether they affect ureteral motility in vivo or whether they can counteract ureteral spasm associated with ureteral stones have not been established.
  • (14) Thrombotic occlusion, in association with varying degrees of plaque disruption and coronary artery spasm, represents the major cause of acute myocardial infarction (AMI).
  • (15) The patients with spasm on top of a fixed organic lesion underwent a successful aorto-coronary bypass graft together with resection of the pre- and sub-aortic nerve plexus.
  • (16) In vitro tests with isolated trachea or ileum of guinea pigs show that flupirtine possesses no or very weak antagonism against histamine-induced spasms.
  • (17) The spasms were inhibited by gallopamil (100 nM) and diltiazem (1 microM).
  • (18) Indeed this procedure is the only one which can act in a fitted manner on muscular spasms responsible of more than 60% of convergent squints.
  • (19) Such an exercise response should suggest significant fixed coronary stenosis in addition to coronary spasm.
  • (20) Evidence is provided for the concept of enlarged spasms (phenomenon of the spastic dominant) common to peptic ulcer.