A learner is given this definition: Formation of a platelet plug at a site of vascular injury. Which answer is most accurate?
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Primary haemostasis is formation of a platelet plug at a site of vascular injury.
Practice CPSP FCPS I Anaesthesiology questions with answers and explanations.
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Primary haemostasis is formation of a platelet plug at a site of vascular injury.
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Vestibulo-ocular reflex is a reflex that stabilises gaze during head movement by producing compensatory eye movement.
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Agonist is a ligand that binds to a receptor and activates it to produce a biological response.
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Competitive antagonist is a reversible receptor blocker whose effect can be overcome by increasing agonist concentration.
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Glomerular filtration rate is the volume of plasma filtered by all functioning glomeruli per unit time.
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Surfactant is a phospholipid-rich substance that lowers alveolar surface tension and helps prevent collapse.
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Bohr effect is reduced haemoglobin affinity for oxygen in tissues with increased carbon dioxide or acidity.
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Insulin is a pancreatic beta-cell hormone that promotes glucose uptake and storage and lowers blood glucose.
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Aldosterone is a mineralocorticoid that increases renal sodium reabsorption and potassium secretion.
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Countercurrent multiplier is a loop-of-Henle mechanism that establishes the medullary osmotic gradient for urine concentration.
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Baroreceptor reflex is a rapid autonomic response that buffers short-term changes in arterial blood pressure.
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Action potential refractory period is a period that limits immediate re-excitation of an excitable membrane after depolarisation.