What's the difference between constriction and narrow?

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.

Narrow


Definition:

  • (superl.) Of little breadth; not wide or broad; having little distance from side to side; as, a narrow board; a narrow street; a narrow hem.
  • (superl.) Of little extent; very limited; circumscribed.
  • (superl.) Having but a little margin; having barely sufficient space, time, or number, etc.; close; near; -- with special reference to some peril or misfortune; as, a narrow shot; a narrow escape; a narrow majority.
  • (superl.) Limited as to means; straitened; pinching; as, narrow circumstances.
  • (superl.) Contracted; of limited scope; illiberal; bigoted; as, a narrow mind; narrow views.
  • (superl.) Parsimonious; niggardly; covetous; selfish.
  • (superl.) Scrutinizing in detail; close; accurate; exact.
  • (superl.) Formed (as a vowel) by a close position of some part of the tongue in relation to the palate; or (according to Bell) by a tense condition of the pharynx; -- distinguished from wide; as e (eve) and / (f/d), etc., from i (ill) and / (f/t), etc. See Guide to Pronunciation, / 13.
  • (n.) A narrow passage; esp., a contracted part of a stream, lake, or sea; a strait connecting two bodies of water; -- usually in the plural; as, The Narrows of New York harbor.
  • (v. t.) To lessen the breadth of; to contract; to draw into a smaller compass; to reduce the width or extent of.
  • (v. t.) To contract the reach or sphere of; to make less liberal or more selfish; to limit; to confine; to restrict; as, to narrow one's views or knowledge; to narrow a question in discussion.
  • (v. t.) To contract the size of, as a stocking, by taking two stitches into one.
  • (v. i.) To become less broad; to contract; to become narrower; as, the sea narrows into a strait.
  • (v. i.) Not to step out enough to the one hand or the other; as, a horse narrows.
  • (v. i.) To contract the size of a stocking or other knit article, by taking two stitches into one.

Example Sentences:

  • (1) The PSB dioxygenase system displayed a narrow substrate range: none of 18 sulphonated or non-sulphonated analogues of PSB showed significant substrate-dependent O2 uptake.
  • (2) Comparison of developmental series of D. merriami and T. bottae revealed that the decline of the artery in the latter species is preceded by a greater degree of arterial coarctation, or narrowing, as it passes though the developing stapes.
  • (3) This promotion of repetitive activity by the introduction of additional potassium channels occurred up to an "optimal" value beyond which a further increase in paranodal potassium permeability narrowed the range of currents with a repetitive response.
  • (4) In all immunized rabbits the antisera obtained with the 7 alpha-derivative had a higher affinity and a narrower specificity than the antiserum obtained with the 7 beta-derivative.
  • (5) That is, he believes, to look at massively difficult, interlocking problems through too narrow a lens.
  • (6) Photograph: AP Reasons for wavering • State relies on coal-fired electricity • Poor prospects for wind power • Conservative Democrat • Represents conservative district in conservative state and was elected on narrow margins Campaign support from fossil fuel interests in 2008 • $93,743 G K Butterfield (North Carolina) GK Butterfield, North Carolina.
  • (7) Their narrowed processes pass at a common site through the muscle layer and above this layer again slightly widen and project above the neighbouring tegument.
  • (8) These patients did not have narrow anterior chamber angles preoperatively, and several were aphakix with surgical iris colobomas.
  • (9) The linewidths of the methionine Cepsilon resonances are narrowed by increasing temperature according to an Arrhenius energy of activation of nearly 3 kcal.
  • (10) The detergent lauryl maltoside abolishes respiratory control and proton ejection by cytochrome c oxidase-containing proteoliposomes over a narrow concentration range.
  • (11) Per-rotational nystagmus was recorded in rabbits with unilaterally narrowed vertebral arteries or following unilateral cervical sympathectomies.
  • (12) However, the narrow range of the ED50 suggests relatively little variation in the response of the different isolates in vivo and similarly small variation was also noted in some of the tests in vitro.
  • (13) Eight patients had glaucoma only in one eye; three narrow-angle glaucoma, three primary open-angle glaucoma and two secondary glaucoma.
  • (14) In the fifth case the vein was too narrow to allow catheterization.
  • (15) It was found that within the dorsal part of the well known pressor area there is a narrow strip, 2.5 mm lateral from the mid line, starting ventral to the inferior colliculus and ending in the medulla close to the floor of the IV ventricle, from which vasodilatation in skeletal muscles is selectively obtained.
  • (16) Each border was within a region of 11 nucleotides and gave rise to a narrow size range (1248-1261 nucleotides) for the population of 22 subgenomic DNAs.
  • (17) These factors include narrowing of septal arteries and the artery to the atrioventricular node, preservation of fetal anatomy with dispersion in the atrioventricular node and His bundle, fibrosis of the sinus node, clefts in the septum, multiple atrioventricular pathways and massive myocardial infarction.
  • (18) Time suggests that the FBI inquiry has been extended from a relatively narrow look at alleged malpractices by News Corp in America into a more general inquiry into whether the company used possibly illegal strongarm tactics to browbeat rival firms, following allegations of computer hacking made by retail advertising company Floorgraphics.
  • (19) These three activities, appearing within a narrow range of molecular weights, different from those of other known lymphokines, suggest the existence of a distinct class of lymphokine mediators with the common function of influencing functional properties of tumor cells.
  • (20) The narrow intercellular ridge is smooth, whereas the epithelial cells have small cytoplasmic knobs between the cilia.