MCQ Collection
Physiology MCQs
Practice Physiology questions with answers and explanations.
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Correct Answer: C. Vestibulo-ocular reflex
Explanation:
Vestibulo-ocular reflex is a reflex that stabilises gaze during head movement by producing compensatory eye movement.
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Correct Answer: B. Frank-Starling mechanism
Explanation:
Frank-Starling mechanism is an increase in ventricular filling produces a stronger contraction within physiological limits.
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Correct Answer: C. Glomerular filtration rate
Explanation:
Glomerular filtration rate is the volume of plasma filtered by all functioning glomeruli per unit time.
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Correct Answer: A. Surfactant
Explanation:
Surfactant is a phospholipid-rich substance that lowers alveolar surface tension and helps prevent collapse.
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Correct Answer: D. Surfactant
Explanation:
Surfactant is a phospholipid-rich substance that lowers alveolar surface tension and helps prevent collapse.
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Correct Answer: B. Bohr effect
Explanation:
Bohr effect is reduced haemoglobin affinity for oxygen in tissues with increased carbon dioxide or acidity.
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Correct Answer: D. Insulin
Explanation:
Insulin is a pancreatic beta-cell hormone that promotes glucose uptake and storage and lowers blood glucose.
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Correct Answer: A. Frank-Starling mechanism
Explanation:
Frank-Starling mechanism is an increase in ventricular filling produces a stronger contraction within physiological limits.
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Correct Answer: A. Glomerular filtration rate
Explanation:
Glomerular filtration rate is the volume of plasma filtered by all functioning glomeruli per unit time.
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Correct Answer: C. Gastrin
Explanation:
Gastrin is a gastrointestinal hormone that stimulates gastric acid secretion and mucosal growth.
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Correct Answer: B. Erythropoietin
Explanation:
Erythropoietin is a renal hormone that stimulates red-cell production in bone marrow during hypoxia.
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Correct Answer: A. Ovulation
Explanation:
Ovulation is release of a mature oocyte from the dominant follicle after the mid-cycle luteinising hormone surge.