HEALTH SCIENCES
WARANGAL, TELANGANA STATE-506002
MBBS FIRST YEAR EXAMINATIONS:
SEPTEMBER, 2025
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PHYSIOLOGYPAPER-II
(NEW SCHEME)
Time: 3 Hours
Max. Marks: 100
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Note: Answer all questionsGive Diagrammatic representation wherever necessary
Multiple Choice Questions: 10 X1=10
1) Actin is tethered to Z-lines
a) Actinin
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c) Nebulinb) Titin
d) Dystrophin
2) Rigor mortis is due to
a) Damage to actin and myosin
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b) Rapid sequestration of Ca in ERc) Increased myosin ATP
d) ATP depletion
3) The condition of prosopagnolia usually results from
Dysfunction or damage to which area of the cerebral
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cortex?
a) Prefrontal areas
b) Junction of parietal and temporal lobe
on nondominant side of the brain
c) Inferior temporal lobes
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d) Frontal eye fields4) Which of the following reflexes is correctly paired
with the sensory structure that mediates the reflex?
a) Reciprocal inhibition-Golgi tendon
b) Golgi tendon reflex-Meissner corpuscle
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c) Stretch reflex-muscle spindled) Reciprocal inhibition-Pacinian corpuscle
5) Which of the following systems conveys information
concerning highly localized touch sensation and body
position (proprioceptive) sensation?
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a) Anterolateral systemb) Dorsal column-medial lemniscal system
c) Corticospinal
d) Spinocerebellar
6) 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 convergence of the lens
d) Ciliary muscle relaxation
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7) The auditory pathway passes via all except:a) Cochlear nucleus
b) Superior olivary nucleus
c) Trapezoid body
d) Superior colliculus
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8) Insula dependent glucose uptake into skeletal muscleand adipose tissue is mainly mediated by
a) GLUTI
c) GLUT 3
b) GLUT 2
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d) GLUT 49) Menstruation is caused by
a) Surge of LH Prior to midcycle
b) Failure of corpus luteum to involute
c) Sudden reduction in oestrogen
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and progesterone in the end of the ovarian cycled) Excessive secretion of oestrogen and progesterone at
the end of the ovarian cycle
10) During the week following ovulation, the
endometrium increases in thickness to 5 to 6 millimetres.
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What stimulates this increase in thickness?a) Luteinizing hormone
b) Oestrogen from the corpus luteum
c) Progesterone from the corpus luteum
d) Follicle-stimulating hormone
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Essay/ Long Answer Questions: 2 X 15 = 3011) A 35-year-old man comes to his physician because of
changes in his appearance. His hands and feet have been
growing and his brow and chin are also becoming larger.
On examination the patient did not see the fingers of the
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examiner when they were moved in either superiortemporal visual field. Detailed visual field examination by
an ophthalmologist revealed a visual field defect in both
temporal fields but the defect was more complete in
superior rather than in inferior quadrants. The patient was
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referred to a neurosurgeon for treatment. Based on thisinformation answer the following questions.
a) Name the hormone which is being secreted in excess.
b) Explain the mechanism of action of hormone
involved.
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c) Enumerate the metabolic function of this hormone.d) Explain the underlying mechanism of changes in the
patient's appearance.
e) What could be the cause for visual defect.
(2+4+4+3+2)
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12) A 32-year-old women presents to her primary carephysician's office with difficulty in chewing food, she
states that when she eats certain foods that require a
significance amount of chewing, her jaw muscle becomes
weak and tired. After a period of rest, her jaw muscle
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regains its strength until she eats again.a. What is your diagnosis.
b. Explain the events of transmission at NMI
c. Treatment of the condition.
d. List out neuro muscular blockers.
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(2+5+4+4)Short Answer Questions: 7X6 = 42
13) Describe the different properties of action potential.
14) Mechanoreceptors
15) Describe three functional divisions of the cerebellum.
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Assign functions to each.16) State the difference between various types of
memories.
17) Describe the process involved in pain modulation.
18) Describe the role of hormones in sex determination
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and sex differentiation19) Indicators of Ovulation.
Very Short Answer Questions: 6X3=18
20) Describe light reflex.
21) Combined contraceptive pills.
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22) Draw Olfactory pathway.23) Barriers of effective communication
24) Weber-Fechner Law
25) Define Electroencephalogram (EEG) what are the
waves seen during REM sleep.
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