Download VNSGU MBBS 1st Year 2021 January Physiology Paper II Question Paper

RAN-2006000101020002

First MBBS Examination

January - 2021

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Physiology Paper II

Time: 3 Hours ] [ Total Marks: 100

? : / Instructions

(1) ? ? ? ? ? ? ? ?.

Fill up strictly the details of signs on your answer book

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Name of the Examination:

First MBBS

Seat No.:

Name of the Subject:

Physiology Paper II

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Subject Code No.: 2006000101020002

Student's Signature

(2) All the sections are compulsory.

(3) Each section must be answered in separate sheets.

(5) Each question must be answered relevantly, precisely and to the point.

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SECTION A

Q-1 Multiple choice question (no negative marking) 20

1. Most of the refraction occurs in the eye at
1. Anterior surface of cornea
2. Posterior surface of cornea

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3. Anterior surface of lens
4. Anterior surface of lens
2. Rhodopsin
1. is a purple pigment
2. Absent in blind people

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3. Regenerated when the eyes are closed
4. None of the above
3. Which sensation directly project to the cortex without relay in thalamus?
1. Touch
2. Taste

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3. Smell
4. None of the above
4. Presbiopia is due to
1. Loss of rods
2. Changes in elasticity of lens

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3. Loss of transparency of the lens
4. None of the above
5. Which one of the following not a superficial reflex
1. Corneal reflex
2. Planter reflex

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3. Abdominal reflex
4. Jaw jerk
6. Which of the following amino acid is not neurotransmitter
1. Tyrosine
2. Glutamic acid

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3. GABA
4. Aspartic acid
7. Repair of myelin sheath in CNS is dependent on function of
1. Schwann cells
2. Astrocytes

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3. Oligodendrites
4. Microglial cells
8. Fibres linking the two hemisphere are known as
1. Mossy fibres
2. Commissural fibres

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3. Climbing fibres
4. Association fibres
9. Which of the following is not extra pyramidal tract
1. Reticulospinal tract
2. Corticospinal tract

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3. Rubrospinal tract
4. Vestibulospinal tract
10. Pain arising from the viscera
1. May be referred pain
2. May cause reflex contraction of nearby skeletal muscle

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3. May cause reflex autonomic effect
4. All of the above
11. The meissner's corpuscles are sensitive to
1. Temperature changes
2. Mechanical deformation

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3. None of the above
4. A & B
12. Which of the following produces inhibit
1. Leydig cells
2. Sertoli cells

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3. Oocyte
4. Spermatocytes
13. Functions of the oxytocin
1. Milk ejection
2. Induction of the labour

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3. A & B
4. None of the above
14. Human spermatozoa normally
1. Contain 23 chromosomes
2. Can survive in female genital tract for 1-2 days

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3. Contain either X or Y chromosome
4. True for all of the above
15. ACTH is inhibited by
1. ADH
2. Angiotensin

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3. Cortisol
4. Epinephrine
16. 17 hydroxy corticoids include
1. Estradiol and progesterone
2. Cortisol and cortisone

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3. Progesterone and aldosterone
4. All of the above
17. Effect of insulin on protein metabolism
1. Is anabolic
2. occurs on liver

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3. is secondary to its effect on glucose
4. true for all of the above
18. The following assess the thyroid functions except
1. Basal metabolic rate
2. Iodine uptake studies

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3. Plasma cholesterol
4. Plasma glucose
19. Lower motor neuron disease is associated with
1. wasting of affected muscle
2. increase muscle tone

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3. increase reflex activity
4. none of the above
20. Following are the important features of doctor patient relationship except
1. Active listening
2. Privacy

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3. Confidentiality
4. None of the above

SECTION B

Q-2 Discuss the physiology of middle ear. Draw and label auditory pathway. 5+5

Q-3 Answer in short (any 5) 15

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1. Broca's area
2. Types of sleep
3. Autonomic receptors
4. Wallerian degeneration
5. Basal metabolic rate

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6. Classification of neurons

Q-4 Write short notes on (any 3) 15

1. Errors of refraction
2. Functions of cerebellum
3. Cerebrospinal fluid

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4. Disorders of visual defects in relation to visual pathway

SECTION C

Q-5 Discuss the physiological actions and regulation of secretion of male sex hormone. Describe the steps of spermatogenesis. 4+2+4

Q-6 Answer in short (any 5) 15

1. Hypersecretion of growth hormone

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2. Ovulation
3. Hormones of placenta
4. Gonadotropin hormones
5. Addison disease
6. Diabetes mellitus

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Q-7 Write short notes on (any 3) 15

1. Physiological actions of parathormone
2. contraception
3. Physiological mechanism of accommodation
4. Feedback mechanism

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