1. Down regulation of hormone meansRegulation by low concentration of hormonedefective regulation in secretiondecreased affinity to receptorsDecreased secretion of hormoneQuestion 1 of 20 2. interference with oxygen exchange in lungs is a type ofhistotoxic hypoxiahypoxic hyoxiaanoxemiaanoxic anoxiaQuestion 2 of 20 3. Fast fatigable motor unit recruitedFirstNoneLastDuring relaxationQuestion 3 of 20 4. During a surgical procedure, cranial nerves IX and X are accidentally cut bilaterally. What would be the immediate change in the patient's hemodynamic condition?Bradycardia with hypotensionBradycardia with hypertensionTachycardia with hypertensionSinus arrhythmia with hypotensionQuestion 4 of 20 5. Fast excitatory post synaptic potential (EPSPs)can be produced by an increase in Na+ conductancecan be produced by a decrease in Ca2+ conductanceoccurs in skeletal muscleare a consequence of decreased Cl- conductanceQuestion 5 of 20 6. clearance test for creatinine measurestubular secretionglomerular filtration rateconcentrating abilityearly loss of renal functionQuestion 6 of 20 7. Arousal is most difficult in which stage of sleepStage 1 NREMStage 2 NREMREMStage 3,4 NREMQuestion 7 of 20 8. Which of the following lung volumes or capacities cannot be measured directly using simple spirometry?Tidal volumeExpiratory reserve volumeFunctional residual capacityInspiratory reserve volumeQuestion 8 of 20 9. Maximum density of muscle spindle is found inLumbricalQuadriceps muscleTricepsCalf muscleQuestion 9 of 20 10. while recording the blood pressurethe cuff and sphygmomanometer are at the same level as heartthe cuff is at level of heart and sphygmomanometer at the eye levelshphygmomanometer should lie at the level of heartcuff is at the level of heartQuestion 10 of 20 11. Muscle spindle detects:Change in muscle lengthChange in muscle positionChange in muscle postureChange in muscle toneQuestion 11 of 20 12. maximum pressure in left ventricle is seen in which phase of cardiac cycleVentricular ejectionIsovolumetric contractionProtodiastoleRapid ventricular fillingQuestion 12 of 20 13. venous return to heart during quiet standing is facilitated by all of the following factors exceptcalf muscle contraction during standingsleeves of deep fasciagravitational increase in arterial pressurevalves in perforatorsQuestion 13 of 20 14. Iron is conserved byNoneHemimedinsHemopexinHepicidinQuestion 14 of 20 15. Cardiac output is increased by all exceptExercisePregnancyhot atmosphereStanding from lying downQuestion 15 of 20 16. Which of these substance is secreted by beta cells of pancreas along with insulinsomatostatinGlucagon like peptideAmylinpancreatic polypeptideQuestion 16 of 20 17. Most of the testosterone secreted by the testes exists in the plasma in the form ofdihydrotestosterone bound to gonadal steroid-binding hormonefree testosteronefree dihydrotestosteronetestosterone bound to sex-steroid-binding globulinQuestion 17 of 20 18. lining cells of bronchi include all of the following exceptbrush cellslangerhans cellskulchitsky cellsclara cellsQuestion 18 of 20 19. Which of the following statements about Troponin C is true? Troponin Cattaches the troponin complex to tropomyosinpermits the interaction of actin and myosininhibits the interaction of actin and myosinis located at the junction of A band and I bandQuestion 19 of 20 20. all are second messengers eceptguanyl cycliseDAGcAMPIP3Question 20 of 20 Loading...
