Download RGUHS MBBS First Year 2024 December 1023 Physiology Paper II Rs 4 Question Paper

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QP CODE : 1023

Rajiv Gandhi University of Health Sciences, Karnataka

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MBBS Phase - I (CBME) Degree Examination - 09-Dec-2024

Time: Three Hours Max. Marks: 100 Marks

PHYSIOLOGY – PAPER - II (RS-4)

Q.P. CODE: 1023

(QP contains two pages)

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Your answers should be specific to the questions asked

Draw neat, labeled diagrams wherever necessary

LONG ESSAYS 2 x 10 = 20 Marks

1. Describe the connections and functions of basal ganglia. Add a note on disorders of basal ganglia
2. Discuss in detail the synthesis and actions of thyroid hormones. Add a note on Grave's disease

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SHORT ESSAYS 8 x 5 = 40 Marks

3. Explain supra spinal control of stretch reflex
4. A 30 year old male who had a recent head injury complained of sudden increase in urine output. He also has immense thirst and nocturia. Blood and urine analysis showed FBS - 95mg/dl; serum osmolality - 305mOsm/kg of water, specific gravity of urine - <1.005; urine volume - 10L/day; urine glucose - nil
   1. What is the probable diagnosis?
   2. Name the hormone involved and its site of action
   3. What is the physiological basis of increased urine output in this condition?

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5. Discuss the actions of testosterone and its regulation
6. Draw a neat labelled diagram of pain pathway. Add a note on gate control theory of pain
7. Explain the mechanism of excitation - contraction coupling in skeletal muscle
8. Describe the contents and functions of middle ear

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9. Explain postural reflexes integrated at the level of medulla oblongata
10. Describe the uterine changes during menstrual cycle. Add a note on hormonal basis for the same

SHORT ANSWERS 10 x 3 = 30 Marks

11. Explain classical conditioning
12. What is aldosterone escape?

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13. List the functions of placental hormones
14. Explain compound action potential
15. Explain synaptic inhibition
16. Define brain death. List the features of brain death
17. Draw a labelled diagram of taste pathway

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18. Explain the different waves of EEG
19. Draw a neat labelled diagram of strength duration curve
20. What is VO2max?

Multiple Choice Questions 10 x 1 = 10 Marks

21. The processing of short-term memory to long-term memory is done in:
    1. Prefrontal cortex

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    2. Hippocampus
    3. Neocortex
    4. Amygdala
22. Capacitation of sperms takes place in:
    1. Seminiferous tubules

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    2. Epididymis
    3. Vas deferens
    4. Uterus
23. Secretion of growth hormone increases with
    1. Increase in blood glucose level

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    2. Increase in cortisol
    3. Increase in free fatty acid level
    4. Increased sleep
24. Action of progesterone:
    1. Causes uterine contraction

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    2. Inhibits LH secretion
    3. Decrease in body temperature
    4. Causes proliferative changes in uterus
25. Glucose increases plasma insulin by a process that involves:
    1. GLUT 1

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    2. GLUT 2
    3. GLUT 3
    4. SGLT 1

22. In moderate exercise the respiratory rate is increased due to response of:
    1. Proprioception receptors in the joints

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    2. Decreased pCO2 in arterial blood
    3. Increased pO2 in arterial blood
    4. J-receptor stimulation
23. In muscle contraction all are true except:
    1. A band remains unchanged

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    2. H zone disappears
    3. I band becomes wider
    4. Two Z lines come closer
24. Transducin is required for:
    1. Smell

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    2. Hearing
    3. Taste
    4. Vision
25. The potential in the endolymph of inner ear
    1. End-plate potential

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    2. Endo lymphatic potential
    3. Action potential
    4. Cochlear microphonic potential
26. The body mass index to be considered as obesity if:
    1. More than 30kg/m²

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    2. More than 25kg/m²
    3. Between 20-24kg/m²
    4. Less than 20kg/m²

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