1. The distance by which two touch stimuli must be separated to be perceived as two separate stimuli is greatest on thelipsPalm of the handBack of the scapulaDorsum of the handQuestion 1 of 20 2. Demyelination occurs due to deficiency of:ThiaminePyridoxineCyanocobalamineNiacinQuestion 2 of 20 3. An elevated level of which of the following substances would identify a specimen as plasma rather than serum?GranulocytesFibrinogenAlbuminErythrocytesQuestion 3 of 20 4. A patient has recurrent attacks of asthma that occur most frequently after aspirin administration. Which of the following is the pathogenetic mechanism in this form of asthma?Type I hypersensitivity reactionInhibition of cyclooxygenase pathwayEnhanced sensitivity to vagal stimulationDirect release of bronchoconstrictor mediatorsQuestion 4 of 20 5. A middle-aged patient develops acromegaly. Which of the following pair of hormones normally regulates the hormone responsible for the symptoms seen with this disease?Prolactin and FSHLH and hCGSomatostatin and GHRHDopamine and norepinephrineQuestion 5 of 20 6. Brocas area of speech is forSensory part of speechMotor part of speechIntegration of speechComprehension of speechQuestion 6 of 20 7. Vagal stimulation of the heart causes decrease in heart rate byDecrease in slope of prepotentialDecrease conductionDecrease in action potential spikeIncrease in repolarisationQuestion 7 of 20 8. in a seriously ill patient addition of amino acids in diet results in a positive nitrogen balance.the mechanism for this isincreased secretion of insulinincreased growth hormone secretionenhanced rate of gluconegenesisincreased proportion of amino acids from dietQuestion 8 of 20 9. capacitance of sperms take place inuterusepididymisvas deferensseminiferous tubulesQuestion 9 of 20 10. maximum potassium ions secretion is seen ingastric secretionsalivajejunal secretioncolonic secretionsQuestion 10 of 20 11. which of the following is not a primary tastesoursweetchillibitterQuestion 11 of 20 12. Which of the following vascular structures contains the largest proportion of the total blood volume in a normal individual?Venules and veinsAorta and large arteriesCapillariesArteriolesQuestion 12 of 20 13. somatomedin mediatesdecreased rate of glucose uptake by cellslipolysisgluconeogenesisdeposition of chondroitin sulphateQuestion 13 of 20 14. low CSF protein may be seen in all of the following conditions exceptrecurrent lumbar punctureinfantspseudotuour cerebrihypothyroidismQuestion 14 of 20 15. Gas used to measure diffusion in lungCO2NitrogenCONOQuestion 15 of 20 16. interference with oxygen exchange in lungs is a type ofanoxemiahistotoxic hypoxiaanoxic anoxiahypoxic hyoxiaQuestion 16 of 20 17. Skeletal muscle use theGLUT 4transporterGLUT1 transporterGLUT 3 transporterGLUT2 transporterQuestion 17 of 20 18. If the luminal diameter of the right renal artery is decreased by approximately 50%, which of the following is most likely increased?Glomerular hydrostatic pressureGlomerular filtration rateSecretion of reninAfferent arteriolar resistanceQuestion 18 of 20 19. Dosage of Vitamin C for curing scurvy:80-100 mg/day8-10 gm/dayI00-200 mg/day800-l000mg/dayQuestion 19 of 20 20. Vibration sense is detected byNone of the aboveDeep receptorsSuperficial receptorsNociceptorsQuestion 20 of 20 Loading...