M.B.B.S. DEGREE EXAMINATION
(For the candidates admitted from the Academic Year 2019-2020)
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FIRST YEAR ? (CBME)
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PAPER II ? PHYSIOLOGYQ.P. Code: 526054
Time: 30 Minutes
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Maximum : 20 MarksAnswer All Questions
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Choose one correct answer in the box provided in the Answer Script. No overwriting
should be done. Choice should be given in Capital Letters.
III. Multiple Choice Questions:
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(20 x 1 = 20)
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1. Prepotential is due to:
A) Voltage gated sodium channels B) Delayed closure of potassium channels
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C) Long lasting calcium channels D) None of the above--- Content provided by FirstRanker.com ---
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2. ___________ acts as a primer pump.
A) Atria B) Ventricles C) Bundle of His D) Purkinjie fibers
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3. Cardiotachometer is an instrument used to diagnose
A) Sinoatrial block B) Sinus arrhythmia
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C) Premature ventricular contraction D) Premature atrial contraction--- Content provided by FirstRanker.com ---
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4. The phenomenon of "Overdrive suppression" is seen inA) Stokes Adam's syndrome B) Wolf Parkinson White syndrome
C) William's syndrome D) Noonan syndrome
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5. Significance of Reynolds number (Re) is toA) Regulate BP B) Regulate speed of blood flow
C) Determine turbulence in blood flow D) Regulate respiration
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6. In cystic fibrosis, Repeated Pulmonary infections occurs due to
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A) Streptococcus pneumonia B) Escherchia ColiC) Pseudomonas aeruginosa D) Klebsiella pneumonia
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7. Factors that shift the Oxygen Dissociation Curve to RightA) Decreased CO2 B) Decreased temperature
C) Increased 2,3 BPG D) Decreased hydrogen ion
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8. Biot's breathing occurs due to
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A) Lesion in Medulla oblongata B) Severe cardiac failureC) Diabetic Ketoacidosis D) Lesion in Pons
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9. Cyanide poisoning causes death due to
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A) Respiratory depression B) Brainstem depression
C) Destruction of cytochrome oxidase D) Circulatory collapse
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10. Dyspnea occurs at rest, when Dyspnoeic Index is reduced toA) < 80% B) <90% C) <60% D) <70%
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11. Type of fibre responsible for carrying motor signals to muscle spindle
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A) A B) A C) A D) A
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12. Types of muscarinic cholinergic receptors present in CNS are
A) M1, M4, M5 receptors B) M2, M4, M5 receptors
C) M3, M4, M5 receptors D) M1, M2, M4 receptors
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13. A receptor that never fully adapts is
A) Pacinian corpuscle B) Meissner corpuscle
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C) Ruffini corpuscles D) Baroreceptors--- Content provided by FirstRanker.com ---
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14. Corticospinal and corticobulbar tract neurons are located in _________ of cerebral cortexA) Layer III B) Layer IV C) Layer V D) Layer I
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15. Herpes virus infects __________________.
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A) Dorsal root ganglion B) Otic ganglion
C) Pterygopalatine ganglion D) Ciliary ganglion
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16. The rate of impulses generated from the vestibular hair cells in resting condition is
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A) 200/sec B) 100/sec C) 300/sec D) 400/sec
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17. Higher intellectual functions are linked to
A) Limbic system B) Parietal lobe C) Prefrontal cortex D) Motor cortex
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18. Distorted sense of smell is called as
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A) Apraxia B) Anosmia C) Parosmia D) Ageusia--- Content provided by FirstRanker.com ---
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19. Other name for Reissner Membrane
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A) Basilar membrane B) Vestibular membraneC) Tympanic membrane D) Tectorial membrane
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20. Loss of accommodation in old age is called
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A) Myopia B) Cataract C) Emmetropia D) Presbyopia.--- Content provided by FirstRanker.com ---
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*********[MBBS 1123]