Download KNRUHS MBBS 1st Year MB2019106 Physiology Paper II Feb 2024 mcq Question Paper

PAPER CODE: MB2019106
KALOJI NARAYANA RAO UNIVERSITY OF
HEALTH SCIENCES
WARANGAL, TELANGANA STATE-506 002
MBBS FIRST YEAR SUPPLEMENTARY

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EXAMINATIONS: FEBRUARY, 2024
PHYSIOLOGY
PAPER-II
(NEW SCHEME)
Time: 3 Hours

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Max Marks: 100
Note: Answer all questions
Give Diagrammatic representation wherever necessary
Multiple Choice Questions: 10 X 1 = 10
1. Which of the following is not a component of the near

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response?
a) Pupillary constriction
b) Convergence of the visual axes
c) Increase in convexity of the lens
d) Ciliary muscle relaxation

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2. Tetany features include all of the following except:
a) Neuromuscular hyperexcitability
b) Carpopedal spasm
c) Trousseau's sign
d) Clotting defects

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3. A 55-year-old man has developed the syndrome of
inappropriate antidiuretic hormone secretion due to
carcinoma of the lung. Which of the following
physiological responses would be expected?
a) Increased plasma osmolality

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b) Inappropriately low urine osmolality (relative to
plasma osmolality)
c) Increased thirst
d) Decreased secretion of antidiuretic hormone from the
pituitary gland

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4. Oogenesis begins:
a) From approx 10th week of foetal life
b) At term
c) After birth
d) At puberty

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5. First synapse of fibers conducting pain takes place at
the level of:
a) Medulla to nucleus cuneatus
b) Grey matter of dorsal horn of spinal cord
c) Medulla in Nucleus Gracilis

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d) Thalamus in posterior ventricular nucleus
6. Feed forward inhibition:
a) Helps to limit the duration of excitation of Purkinje
cells produced by any given afferent impulses
b) Refers to excitation of granule cells is rapidly

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stopped by negative feedback loop
c) Determines inhibitory Purkinje fiber discharge
d) Regulates excitatory Purkinje fiber discharge

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7. Satiety centre in hypothalamus is regulated by:
a) Gastric dilatation

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b) Blood glucose levels
c) Blood insulin levels
d) Fatty acids
8. Olfactory receptors are:
a) Sensitive to physical stimuli

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b) Rapidly replaced
c) Slowly adapting
d) Bipolar neurons
9. In the patellar tendon reflex, which of the following
items will synapse directly on alpha motor neurons that

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innervate the muscle being stretched?
a) Ia sensory fibre
b) Ib sensory fibre
c) Excitatory interneurons
d) Gamma motor neurons

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10. Which of the following is NOT a characteristic of an
action potential
a) Refractory period
b) Conductivity
c) Accommodation

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d) Graded response to increasing strength of stimuli
Essay/ Long Answer Questions: 2 X 15 = 30
11. A 48-years old female visits doctor with complaints of
weakness, weight gain and feeling of excessive cold. On
investigations, her TSH was high and T3, T4 were low.

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a) Identify the condition.
b) Describe in detail the biosynthesis of thyroid hormone.
Enumerate the functions of the thyroid hormone in
different organ systems.
c) List the conditions caused due to the alterations in

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serum thyroid hormone levels. (2+8+5)
12. A 59 years old man visited his physician with the
following signs and symptoms.
Tremor in his hands and fingers. His face is inexpressive
and he makes few movements, he has difficulty in

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standing up, he walks slowly and his arms do not swing
appreciably, his speech is monotonous but he shows no
intellectual deficit. Based on this information answer the
following questions.
a) Identify the condition and the part of the nervous

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system involved in this disease.
b) Describe the connections and functions of the part of
nervous system involved.
C) Explain the physiological basis of its management.
(4+8+3)

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Short Answer Questions: 7 X 6 = 42
13. Describe the steps involved in the transmission of
impulses across the neuromuscular junction. Discuss the
role of neuromuscular blocking agents.
14. Define Spermatogenesis and describe the hormones

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and factors influencing Spermatogenesis
15. Enumerate the Functions of thalamus.

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16. Describe the tests for ovulation.
17. Discuss the role of skin in temperature regulation.
18. Describe the causes and manifestations of Cushing's

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Syndrome.
19. Describe the process involved in pain modulation.
Very Short Answer Questions: 6 X 3 = 18
20. Renshaw cell inhibition.
21. Define Electroencephalogram (EEG) what are the

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waves seen during REM sleep
22. Describe the rights and responsibilities of patients.
23. List the contraceptive methods in females. Briefly
explain the mechanism of action intrauterine contraceptive
devices.

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24. Discuss any three properties of skeletal muscle.
25. Weber-Fechner law.

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