KALOJI NARAYANA RAO UNIVERSITY OF HEALTH SCIENCES
WARANGAL, TELANGANA STATE ? 506 002
MBBS FIRST YEAR SUPPLEMENTARY EXAMINATIONS: NOVEMBER, 2024
--- Content provided by FirstRanker.com ---
PHYSIOLOGYPAPER ? II
Time: 3 Hours
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
Max Marks: 100Note: Answer all questions
Give Diagrammatic representation wherever necessary
Multiple Choice Questions:
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
10 X 1 = 101
Which of the following describes a connection between components of the basal
ganglia?
--- Content provided by FirstRanker.com ---
a) The subthalamic nucleus releases
b) The substantia nigra pars reticulata
glutamate to excite the globus
--- Content provided by FirstRanker.com ---
releases Dopamine to inhibit thepallidus, internal segment
striatum
c) The substantia nigra pars compacta
--- Content provided by FirstRanker.com ---
d) The striatum releases acetylcholine toreleases Dopamine to excite the
excite the substantia nigra para
Globus pallidus, external segment
--- Content provided by FirstRanker.com ---
reticulata2
Tetany features include all of the following except:
--- Content provided by FirstRanker.com ---
a) Neuromuscular hyperexcitabilityb) Carpopedal spasm
c) Trousseau's sign
--- Content provided by FirstRanker.com ---
d) Clotting defects3
Calcium metabolism is mainly dependent on
--- Content provided by FirstRanker.com ---
a) Calcitonin
b) Parathormone
--- Content provided by FirstRanker.com ---
c) Thyroxined) Growth Hormone
4
Oogenesis begins:
--- Content provided by FirstRanker.com ---
a) From approx 10th week of foetal life
b) At term
--- Content provided by FirstRanker.com ---
c) After birth
d) At puberty
5
--- Content provided by FirstRanker.com ---
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
--- Content provided by FirstRanker.com ---
cord
c) Medulla in Nucleus Gracilis
d) Thalamus in posterior ventricular
--- Content provided by FirstRanker.com ---
nucleus
6
Feed forward inhibition:
--- Content provided by FirstRanker.com ---
a) Helps to limit the duration of
b) Refers to excitation of granule cells is
excitation of Purkinje cells produced
rapidly stopped by negative feedback
--- Content provided by FirstRanker.com ---
by any given afferent impulsesloop
c) Determines inhibitory Purkinje fiber
d) Regulates excitatory mossy fiber
--- Content provided by FirstRanker.com ---
discharge
discharge
7
Satiety centre in hypothalamus is regulated by:
--- Content provided by FirstRanker.com ---
a) Gastric dilatation
b) Blood glucose levels
--- Content provided by FirstRanker.com ---
c) Blood insulin levels
d) Fatty acids
8
--- Content provided by FirstRanker.com ---
Olfactory receptors are:a) Sensitive to physical stimuli
b) Rapidly replaced
--- Content provided by FirstRanker.com ---
c) Slowly adapting
d) Bipolar neurons
--- Content provided by FirstRanker.com ---
9
A patient complaining of muscle weakness was given neostigmine injection, which
--- Content provided by FirstRanker.com ---
improves his muscle strength. The Neostigmine acts bya) Blocking the action of acetylcholine
b) Interfering with action of amine
--- Content provided by FirstRanker.com ---
oxidasec) Interfering with the action of
d) Interfering with the action of carbonic
acetylcholine esterase
--- Content provided by FirstRanker.com ---
anhydrase10 Which of the following is NOT a characteristic of an action potential
a) Refractory period
--- Content provided by FirstRanker.com ---
b) Conductivityc) Accommodation
d) Graded response to increasing
strength of stimuli
--- Content provided by FirstRanker.com ---
Essay/ Long Answer Questions:2 X 15 = 30
--- Content provided by FirstRanker.com ---
11. A 48-years old female visits doctor with complaints of weakness, weight gain and feeling ofexcessive cold. On investigations, her TSH was high and T3, T4 were low.
a) Identify the condition.
b) Describe in detail the biosynthesis of thyroid hormone. Enumerate the
functions of the thyroid hormone in different organ systems.
--- Content provided by FirstRanker.com ---
c) List the conditions caused due to the alterations in serum thyroid hormone levels. (2+5+5+3)12. A male aged 50 years came with progressive loss of vision. On examination, he had loss of vision
of temporal quadrants of both eyes.
a) Identify the condition and where is the most probable site of lesion.
b) Trace the visual pathway.
--- Content provided by FirstRanker.com ---
c) Describe the effects of lesion at various levels in its course.(3+6+6)
Short Answer Questions:
--- Content provided by FirstRanker.com ---
7 X 6 = 42
13. Describe the steps involved in the transmission of impulses across the neuromuscular junction.
--- Content provided by FirstRanker.com ---
Discuss the role of neuromuscular blocking agents.14. Mention the stages of Spermatogenesis and describe the role of hormones and factors influencing
Spermatogenesis.
15. Enumerate the Functions of thalamus.
16. Describe the tests for ovulation.
--- Content provided by FirstRanker.com ---
17. Discuss the role of skin in temperature regulation.18. Describe the causes and manifestations of Cushing's Syndrome.
19. Describe the mechanisms involved in pain modulation.
Very Short Answer Questions:
--- Content provided by FirstRanker.com ---
6 X 3 = 18
20. Renshaw cell inhibition.
21. Receptor potential.
--- Content provided by FirstRanker.com ---
22. Describe the rights and responsibilities of patients.23. List the contraceptive methods in females. Briefly explain the mechanism of action of intrauterine
contraceptive devices.
24. Describe Sarco- tubular system in skeletal muscle.
25. Cochlear microphonic potentials.
--- Content provided by FirstRanker.com ---
*****