Capillary permeability is increased by: a. bradykinin b. adrenaline c. calcium d. vasopressin

Capillary permeability is increased by:
a. bradykinin
b. adrenaline
c. calcium
d. vasopressin
by

1 Answer

Answer :

bradykinin
by

Related questions

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Select the action of vasopressin exerted through the V1 subtype receptors: A. Release of coagulation factor VIII and von Willebrands factor from vascular endothelium B. Increased peristalsis of gut C. Dilatation of blood vessels D. Increased water permeability of renal collecting ducts

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Phases of multiorgan failure will include: a. Generalized increased capillary permeability b. A hypermetabolic state c. Organ malfunction d. All of the above

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The Symptoms of allergen-mediated asthma result from which of the following? (a) Increased release of mediators from mast cells (b) Increased adrenergic responsiveness of the airways (c) Increased vascular permeability of bronchial tissue (d) Decreased calcium influx into the mast cells (e) Decreased prostaglandin production

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A capillary tube is kept vertical in a beaker containing liquid. The height to which the liquid rises by capillary action is increased if (a) The radius of the capillary is large (b) The radius of the capillary is small (c) The density of the liquid is large (d) The surface tension of the liquid is small

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Local anesthetics: A. Inhibit transmission of nerve impulses by increasing sodium membrane permeability and the displacement of ionized calcium. B. Are classified as amides or esters. C. Produce peripheral vasodilation. D. Are weak acids.

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A tripeptide functioning as an important reducing agent in the tissues is (A) Bradykinin (B) Kallidin (C) Tyrocidin (D) Glutathione

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Tachyphylaxis to many actions on repeated injection is a feature of the following autocoid (a) Histamine (b) 5-Hydroxytryptamine (c) Bradykinin (d) Angiotensin

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Following mediators are involved in acute inflammation except (a) Histamine (b) Leukotrienes (c) Interferons (d) Bradykinin

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Prostaglandins are chemical substances thought to a) increase sensitivity of pain receptors. Prostaglandins are believed to increase sensitivity to pain receptors by enhancing the pain-provoking effect of bradykinin. b) reduce the perception of pain. Endorphins and enkephalins reduce or inhibit transmission or perception of pain. c) inhibit the transmission of pain. Endorphins and enkephalins reduce or inhibit transmission or perception of pain. d) inhibit the transmission of noxious stimuli. Morphine and other opioid medications inhibit the transmission of noxious stimuli by mimicking enkephalin and endorphin.

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Patient with morphine coma; what is the medication of choice to reverse its act: a. Bradykinin. b. Epinephrine. c. Amphetamine. d. Naloxone.

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In patients with morphine coma, what is the medication of choice to reverse its act: A. Bradykinin B. Epinephrine C. Amphetamine D. Naloxone

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Select the nonapeptide which can be generated from plasma globulin by snake venom enzymes, causes fall in BP and intense pain when applied to blister base: A. Kallidin B. Bradykinin C. Angiotensin II D. Angiotensin III

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Bradykinin and angiotensin II have the following feature common to both: A. They both cause fall in BP B. They both are degraded by Kininase II C. Their precursor proteins are plasma α2 globulins D. They both release aldosterone from adrenal cortex

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Losartan differs from enalapril in the following respect: A. It does not potentiate bradykinin B. It depresses cardiovascular reflexes C. It impairs carbohydrate tolerance D. It does not have fetopathic potential

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Potentiation of bradykinin appears to play a role in the following effects of angiotensin converting enzyme inhibitors except: A. Fall in BP in the short term B. Fall in BP in the long term C. Cough in susceptible individuals D. Angioedema in susceptible individuals

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Ventricular remodeling after myocardial infarction involves the mediation of: A. Angiotensin II B. Prostaglandin C. Bradykinin D. Thromboxane A2

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The following is a pressor peptide that can be generated both in circulation as well as locally in certain tissues: A. Bradykinin B. Angiotensin C. Kallidin D. Plasmin

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Prolonged airway hyperreactivity is characteristically caused by: A. Histamine B. Prostaglandin E2 C. Platelet activating factor D. Bradykinin

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Dysmenorrhoea is often associated with excess production of the following autacoid by the endometrium: A. Bradykinin B. Prostaglandin C. Platelet activating factor D. 5-Hydroxytryptamine

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Tachyphylaxis to many actions on repeated injection is a feature of the following autacoid: A. Histamine B. 5-Hydroxytryptamine C. Bradykinin D. Prostaglandin E2

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Eicosanoids mediate inflammation in a variety of ways. Of the following statements, which are true with regard to this? a. Eicosanoids are stored in cytoplasmic granules for release after receptor mediated signaling b. Eicosanoids include prostaglandins, thromboxanes, leukotrienes and lipoxins c. Eicosanoids generally have a plasma half-life measured in hours d. Physiologic responses to eicosanoids include vasodilatation, vasoconstriction, increased vascular permeability and both chemotaxis and chemoattractant inhibition

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Under certain circumstances, the gut may become a source of sepsis and serve as the motor of systemic inflammatory response syndrome. Microbial translocation is the process by which microorganisms migrate across the mucosal barrier to invade the host. Which of the following mechanisms can promote bacterial translocation? a. An increased number of gut bacteria b. Altered intestinal mucosal permeability c. Decreased host defense mechanisms d. Lack of enteral feeding

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Which of the following statements regarding cytokines is incorrect? A. Cytokines act directly on target cells and may potentiate the actions of one another. B. Interleukin 1 (IL-1) is a major proinflammatory mediator with multiple effects, including regulation of skeletal muscle proteolysis in patients with sepsis or significant injury. C. Platelet-activating factor (PAF) is a major cytokine that results in platelet aggregation, bronchoconstriction, and increased vascular permeability. D. Tumor necrosis factor alpha (TNF-a), despite its short plasma half-life, appears to be a principal mediator in the evolution of sepsis and the multiple organ dysfunction syndrome because of its multiple actions and the secondary cascades that it stimulates.

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The primary mechanism underlying the resistance of gram-positive organisms to macrolide antibiotics is (a) Methylation of binding sites on the 50S ribosomal subunit (b) Formation of esterases that hydrolyze the lactone ring (c) Increased activity of efflux mechanisms (d) Formation of drug-inactivating acetyltranferases (e) Decreased drug permeability of the cytoplasmic membrane

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In the neurone: a. the magnitude of the action potential is dependent on the strength of the stimulus b. impulses can travel in both direction c. depolarization is accompanied by increased permeability of the cell membrane to potassium ions d. during depolarization, the potential of the neurone changes from -70mV to +40mV

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Anti-diuretic diuretic hormone (ADH) a. is synthesized by the posterior lobe of the pituitary gland b. is released by neurosecretion c. its secretion is increased by a low plasma osmolarity d. increases the permeability of the distal convoluted tubule

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The resting membrane potential of a cell a. is dependent on the permeability of the cell membrane to K+ being greater than the permeability to Na+ b. falls to zero immediately when Na+, K+ ATPase in the membrane is inhibited c. is usually equal to the equilibrium potential for K+ d. is usually equal to the equilibrium potential for Na+ e. is markedly altered if the extracellular Na+ concentration is increased

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