Jabalpur
MBBS First Professional Examination April-2022
Subject- Physiology
Paper-II
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Time: 3:00 HoursMax. Marks: 75
a) All questions are compulsory
b) Draw diagrams wherever necessary
c) Answers of Questions and Sub-questions must be
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written strictly according to serial order of questionpaper.
d) MCQ has to be answered in theory answer book
e) Please write MCQ answer neatly and in serial order
with black or blue pen in brackets; for example: - 1.
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(a) 2. (c)f) MCQ has to be answered only once, any kind of
repetition or cutting or erasing or whitener will be
considered as malpractice, such answers will not be
counted in marks and action will be taken according to
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UFM rules of university.Q1. Total MCQs: 20
1. The part of vestibule that prevents a person from
falling while suddenly turning is
(a) saccule
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(b) utricle(c) cochlea
(d) semicircular canals
2. An effective temporary method of contraception in
females is
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(a) tubectomy(b) vasectomy
(c) IUCD
(d) condom
3. Prolactin synthesis and secretion may be inhibited by
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(a) dopamine(b) serotonin
(c) substance P
(d) all of the above
4. The refractory power of the reduced eye is
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(a) 64 diopters(b) 14 diopters
(c) 41 diopters
(d) 59 diopters
5. Smooth muscle is different from skeletal muscle
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because smooth muscle(a) can be voluntarily contracted
(b) is found in the walls of arteries
(c) has many nuclei in a cell
(d) has intercalated disc between the cells
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6. The highest density of voltage-gated ion channels isfound on which part of neuron
(a) dendrites
(b) soma
(c) nodes of Ranvier
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(d) internodes7. What is the function of luteinizing hormone
(a) it stimulates Leydig cells to produce testosterone
(b) it stimulates Sertoli cells to produce sperms
(c) it stimulates the anterior pituitary to release FSH
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(d) it stimulates the ovary to develop follicles8. Which one of the following is NOT a secondary sex
characteristic
(a) the adult male body shape
(b) the thicker vocal cords of a male
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(c) pubic hair(d) penis
9. Primary auditory cortex is in Brodmann's area
(a) 37
(b) 41
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(c) 43(d) 47
10. The laboratory report shows values of gonadotropin
and ovarian hormones of the blood sample taken, on day
20 of menstrual cycle of a young woman. Whether the
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cycle was ovulatory or not will be assessed by serumlevels of
(a) FSH
(b) LH
(c) estradiol
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(d) progesterone
11. Which of the following organs has maximum % of
growth in first two years of life
(a) brain
(b) kidney
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(c) gonads(d) liver
12. The first change to occur in a sharp cut nerve is
(a) chromatolysis
(b) Schwann cell proliferation
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(c) degeneration of myelin sheath(d) degeneration of neurilemma
13. All of the following are regulated by hypothalamus
except
(a) food intake
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(b) hypophysis(c) anticipatory rise in heart rate
(d) temperature
14. Lower and upper lethal core temperatures
respectively are
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(a) 26 and 43.5?C(b) 5?C below and above normal
(c) 30?C and 41?C
(d) 7?C below and above normal bodytemaperature
15. Not an effect of glucagon
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(a) stimulates glycogenolysis(b) hormone of abundance
(c) mobilizes glucose
(d) promotes gluconeogenesis
16. Olfactory receptors are
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(a) sensitive to physical stimuli(b) rapidly replaced
(c) slowly adapting
(d) bipolar neurons
17. All the following mechanisms lead to an increase in
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body heat loss EXCEPT(a) cutaneous vasodilation
(b) sweating
(c) increased respiration
(d) curling up
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18. The gap between the plasma membranes of a neuronthat conducts and incoming signal and the cell that is
going to receive the signal is known as
(a) neuromuscular junction
(b) intercellular cleft
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(c) synaptic cleft(d) intercalated disc
19. Experimental diabetes mellitus is caused by
(a) alloxan
(b) prostaglandin F
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(c) radioactive iron(d) gold metal
20. Weber Fechner law deals with
(a) frequency discrimination
(b) receptive field organization
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(c) intensity discrimination(d) two-point discrimination
Q2. Short Answer Questions
10 x 5 = 50
a. Describe visual pathway with the help of a well labeled
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diagramb. Enumerate and describe professional qualities and
roles of a physician
c. Calcitonin
d. Addison's disease
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e. Draw a well labeled diagram of muscle spindle andfunctions of muscle spindle
f. Short note on memory
g. Explain Young-Helmholtz theory of color vision
h. Properties of receptors
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i. What are the differences between pyramidal andextrapyramidal tracts
j. Sec differentiation and their abnormalities
Q3. Long Answer Questions
3 x 10 = 30
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a. Define and classify synapse. Describe synapticinhibition in detail. Add a note on subliminal fringe
b. Describe the connections and functions of cerebellum.
Add a note on clinical features of cerebellar disorders
c. What is menstrual cycle. Describe briefly the various
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phases***