Download MBBS TMU 1st Year 2019 MBS102 Physiology II Question Paper

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MBBS I (First) Professional Examination 2018-19

Course Code: MBS102

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Paper ID: 03219137

Physiology -II

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Time: 2 Hours 40 Minutes

Max Marks: 40

Note: Attempt all questions. Draw proper diagrams to support your answer.

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Part 'B'

1. Define lactation. Describe the hormones concerned with development of breast during pregnancy and lactation. (7)

2. Write short notes on the following: (4+4)

   1. Muscle Spindle

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   2. Transport across neuromuscular junction

3. Name the receptors for pain. Describe fast and slow pain pathways. (7)

4. Write short notes on: (4+4)

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   1. Errors of refraction
   2. Describe the Ionic basis of action potential

5. What is the normal serum calcium level? Describe the hormonal regulation of serum calcium. What are the clinical features of tetany? (10)

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MBBS I (First) Professional Examination 2018-19

Course Code: MBS102

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Physiology - II

Part 'A'

Time: 20 Minutes

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Paper ID: 03219137

Max Marks: 10

Roll No.

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Student's Name

Student's Signature

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Invigilator's Signature

Note: 1. Attempt all questions and return this part of the question paper to the invigilator after 20 Minutes.

2. Please tick (√) correct one only. Cutting, overwriting or any other marking are not allowed.

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3. For answering please use Ball- pen only.

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1. Physiologically, the site of origin in motor neurons of conducted impulses is the:

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   1. Dendritic zone
   2. Axon hillock
   3. Node of Ranvier.
   4. Terminal button

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2. The muscle spindle is not innervated by:

   1. Aa fibers
   2. Ay fibers
   3. Ia fibers
   4. II fibers

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3. Insulin is secreted from:

   1. α cell
   2. β cell
   3. δ cell

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   4. None

4. Which of the following inhibits lactation:

   1. Prolactin
   2. Chorionic somatomammotropin

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   3. Estrogen and progesterone
   4. Growth hormone

5. Which one is not a feature of Diabetes mellitus?

   1. Polyuria

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   2. Hypertension
   3. Polyphagia
   4. Polydypsia

6. Weber's test is applied to test:

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   1. Sense of smell
   2. Sense of hearing
   3. Visual acuity
   4. Sense of equilibrium

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7. Axons of ganglion cells in the retina terminate in:

   1. lateral geniculate nucleus
   2. pretectal nucleus
   3. suprachiasmatic nucleus
   4. all of the above

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8. Which of the following is the best example of reflex:

   1. Stretch reflex
   2. Axon reflex
   3. Inverse stretch reflex

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   4. Withdrawal reflex

9. Rhodopsin has peak sensitivity to light at a Wave length of:

   1. 405 nm
   2. 505 nm

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   3. 605 nm
   4. 705 nm

10. The gate theory of pain was proposed by:

    1. Cannon and Bard

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    2. Charles Sherrington
    3. Wall and Melzack
    4. Weber and Fechner

11. JAK-STAT pathways mediate the effects of:

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    1. transducin
    2. aquaporins
    3. gusducins
    4. growth hormone

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12. Normally, the thyroid gland secretes:

    1. CGRP
    2. PTH related peptide
    3. TSH
    4. Calcitonin

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13. Inner hair cells in the organ of Corti are depolarized by:

    1. K+ influx
    2. Na+ influx
    3. Ca+ influx

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    4. Closure of K+ channels

14. Colour blindness:

    1. Is a Genetic disorder involving X chromosomes
    2. Is a Genetic disorder involving Y chromosomes

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    3. Affects females only
    4. Can be corrected by using cylindrical lenses

15. Sertoli cells produce:

    1. Estrogen

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    2. DHEA
    3. Mullerian inhibiting polypeptide
    4. TSH

16. Middle ear contains:

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    1. Endolymph
    2. Perilymph
    3. Organ of corti
    4. Ossicles

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17. Hypothalamus does not play a prominent role in the regulation of:

    1. Food and water intake
    2. Temperature
    3. Respiration
    4. Osmolality

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18. Most of the circulating T4 is bound to:

    1. Prealbumin
    2. Albumin
    3. Thyroxine-binding globulin

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    4. None of the above

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