Download NTRUHS 1st Year MBBS 2023 January Physiology Paper II Question Paper

CBME

DR.NTR UNIVERSITY OF HEALTH SCIENCES: AP: VIJAYAWADA-520 008

MBBS DEGREE EXAMINATION – JANUARY, 2023

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FIRST M.B.B.S. EXAMINATION

PHYSIOLOGY - PAPER-II (SET-B)

(Multiple Choice Questions)

Time: 20 Minutes Max Marks: 20

Note: Answer all questions

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SECTION – I (MCQs- 20 MARKS) 1x20=20

1. The sensation carried by the lateral spinothalamic tract is

   1. Vibration
   2. Fine touch
   3. Warmth

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   4. Stereognosis

2. With respect to pain, a correct statement is:

   1. Free nerve endings are the pain receptors
   2. Visceral pain reaches the spinal cord through motor nerve fibers

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   3. Fibers carrying pain impulses synapse at nucleus cuneatus in the medulla
   4. Pain is carried by dorsal column tract

3. Slow waves in visceral smooth muscle

   1. Can initiate action potential

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   2. Are also called pacemaker waves
   3. Arise without an external stimulus
   4. All of the above

4. Which one of the following is NOT true about compound action potential in a mixed nerve

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   1. Obeys all/none law
   2. First peak belongs to slowest conducting fiber
   3. Shows different peaks
   4. First peak belongs to fastest conducting fiber

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5. Flushing, anhidrosis, ptosis, miosis, and absence of cellospinal reflex is seen in

   1. Brown Sequard Syndrome
   2. Cushing's reflex
   3. Tabes dorsalis
   4. Horner's syndrome

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6. Which of the following neurotransmitters is used by the axons of substantia nigra neurons, which project to the caudate and putamen?

   1. Norepinephrine
   2. Dopamine
   3. Serotonin

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   4. Acetylcholine

7. Which of the following neurons forms synaptic junctions with intrafusal fibers within the muscle spindles?

   1. Alpha motor neurons
   2. Pyramidal neurons

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   3. Gamma motor neurons
   4. Granule cells

8. Which of the following is the correct Broadmann number for the primary motor cortex?

   1. 6

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   2. 5
   3. 4
   4. 3

9. Blobs of visual cortex are associated with

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   1. Color processing
   2. Orientation
   3. Saccadic eye movements
   4. Light perception

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10. If red and green cones are stimulated equally, the color observed is

    1. Red
    2. Green
    3. Yellow
    4. Purple

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11. Medial geniculate body is related to

    1. Vision
    2. Hearing
    3. Smell

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12. 1. Taste

    The physiological basis for 'phantom limb' is

    1. Muller's law and Bell Magendie law
    2. Doctrine of specific nerve energies

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    3. Muller's law and Law of Projection
    4. Bell Magendie law and Law of Projection

13. Hypocalcemia is caused due to

    1. Thyroxine

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    2. Parathormone
    3. Cholecalciferol
    4. Calcitonin

14. Angiotensin is produced in

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    1. Liver
    2. Kidney
    3. Hypothalamus
    4. Lungs

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15. Melatonin is secreted from

    1. Hypothalamus
    2. Pineal gland
    3. Adrenal cortex
    4. Melanocytes

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16. Hypoglycemic hormone is

    1. Catecholamine
    2. Somatostatin
    3. Cortisol

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    4. Insulin

17. Estrogen is not produced by

    1. Pituitary
    2. Ovary

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    3. Adrenal Cortex
    4. Placenta

18. Elasticity of cervical mucus is seen in

    1. Proliferative stage

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    2. Luteal stage
    3. Midcycle
    4. Menstruation

19. Mid-cycle rise of basal body temperature is due to

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    1. LH
    2. FSH
    3. Estrogen
    4. Progesterone

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20. Most powerful vasopressor is

    1. Renin
    2. Angiotensin II
    3. Aldosterone
    4. Cortisol

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