Download MBBS First Year Physiology Paper II MCQs 2022 Question Paper

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M.B.B.S. DEGREE EXAMINATION

(For the candidates admitted from the Academic Year 2019-2020)

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FIRST YEAR

PAPER II - PHYSIOLOGY

MULTIPLE CHOICE QUESTIONS

O.P. Code: 526054

Time: 30 Minutes Maximum : 20 Marks

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Answer All Questions

Choose one correct answer in the box provided in the Answer Script. No overwriting should be done.

I. Multiple Choice Questions: (20x1=20)

1. Which of the following is inhibitory to vaso motor area,
   1. Pain pathways
   2. Baro receptors

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   3. Chemo receptors
   4. All of the above
2. Sympathetic stimulation of heart causes all except,
   1. Increased refractory period
   2. Decreased refractory period

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   3. Positive chronotropism
   4. Positive ionotropism
3. Last ditch stand is
   1. Brain bridge reflex
   2. Mary’s reflex

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   3. CNS ischaemic response
   4. Triple response
4. 3rd heart sound is due to
   1. Closure of semilunar valves
   2. Rapid filling of ventricles

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   3. Atrio-ventricular valves closure
   4. Atrial systole
5. The following antibody is found in lungs,
   1. IgD
   2. IgA

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   3. IgM
6. Vagal stimulation causes increase in,
   1. Heart rate
   2. R-R interval in ECG
   3. Cardiac output

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   4. Force of contraction
7. Flow in small airways is laminar because,
   1. Reynolds number in small airways is more than 2000
   2. Cross-sectional area in small airways is small
   3. The diameter of these airways is small

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   4. The linear velocity of airflow in small air ways is extremely low
8. Stability of alveoli is maintained by,
   1. Residual air
   2. Increased surface area by surfactant
   3. Negative intra pleural pressure

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   4. Lung compliance
9. Apex of the lung are predisposed to tuberculosis because the alveolar air there has,
   1. Increased PCO2
   2. Increased PO2
   3. Decreased PCO2

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   4. Decreased PO2
10. In bends disease the gas responsible for the pathological effects is,
    1. O2
    2. CO2
    3. Helium

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    4. Nitrogen
11. The chemical responsible for causing more pain following a tissue damage is,
    1. Opioids
    2. Ischaemia
    3. Bradykinin

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    4. Substance P
12. Parkinson’s disease is characterised by the following triad,
    1. Hypokinesia, rigidity, tremors
    2. Rigidity, tremors, nystagmus
    3. Flaccidity, intentional tremors, ataxia

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    4. Rigidity, hypokinesia, dysarthria
13. Hunger centre is,
    1. Ventro-medial nucleus of thalamus
    2. Lateral hypothalamic nucleus
    3. Anterior hypothalamic nucleus

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    4. Posterior hypothalamic nucleus
14. If the patient survives, what is the first thing to return following spinal shock?
    1. Skeletal muscle activity
    2. Smooth muscle activity
    3. Sympathetic tone

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    4. Reflex activity
15. CSF pressure is
    1. 120-180 mm of water
    2. 120-180 mm of Hg
    3. 80-100 mm of water

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    4. 80-100 mm of Hg
16. All of the following are features of LMN lesion except,
    1. Flaccid paralysis
    2. Exaggerated deep reflexes
    3. Babinski’s sign negative

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    4. Muscle wasting
17. Refractive index of cornea is,
    1. 1.37
    2. 1.33
    3. 1.42

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    4. 1.39
18. Helicotrema is a communication between,
    1. Cochlea and semi-circular canal
    2. Vestibule and semi-circular canal
    3. Scala vestibuli and scala tympani

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    4. Scala media and cochlea
19. The Refractive error which occurs in elderly people is
    1. Myopia.
    2. Astigmatism.
    3. Hypermetropia.

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    4. Presbyopia.
20. The receptors for hearing is
    1. Ear ossicles.
    2. Saccule.
    3. Utricle.

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    4. Hair cells in cochlea.

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