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.Management Sciences
Category: Physiology Mcqs
Hypercalcemia associated with malignancy is most often mediated by _____________?
A. Parathyroid hormone ( PTH)
B. Parathyroid hormone related protein (PTHrP)
C. Interleukin – 6 ( IL- 6)
D. Calcitonin
All the heart valves are open during which stage of cardiac cycle __________________?
A. Systolic ejection
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. None of the above
Which of the following is not a cause of secondary polycythemia ?
A. High Altitude
B. Myeloproliferative changes
C. Pheochromocytoma
D. Cerebellar hemangioblastoma
Survival time of platelet is approximately______________?
A. 10 hours
B. 10 days
C. 10 weeks
D. 100 days
Delay in blood coagulation results from________________?
A. Human thrombin
B. Heparin
C. Ferric chloride
D. Vit- K
Neurotransmitter in nigrostrial pathway is_______________?
A. Dopamine
B. GABA
C. Acetyl choline
D. Nor epinephrine
Increase in partial pressure of CO2 leading to release of oxygen to the tissues is________________?
A. Haldane effect
B. Bohr effect
C. Breur effect
D. Hamburger effect
Insulin facilitates glucose uptake in____________?
A. Kidney tubules
B. Red blood cells
C. Brain
D. Skeletal muscle
What is true about pneumothorax ?
A. Total chest wall diameter is increased
B. Interpleural pressure becomes more negative
C. The concentration of surfactant is reduced in alveoli
D. Increased lung compliance
Blood supply to the brain during moderate exercise________________?
A. decreases
B. Remains constant
C. Increases
D. Increases then decreases
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