The West Bengal University of Health Sciences
MBBS 1st Professional Examination (New Regulation), March 2021
Subject: Physiology
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Paper: II
Full Marks: 100
Time: 3 hours
Attempt all questions. The figures in the margin indicate full marks.
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- Name the components of basal ganglia. With a suitable diagram outline their chief connections and functions. Briefly state the features and treatment of Parkinsonism. 2+3+3+5+2
- Describe the mechanism of action of growth hormone. Enumerate the factors influencing secretion of growth hormone. 10+5
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- Define pain. Describe pain pathways. Write briefly endogenous pain control mechanisms. 1+6+3
- Describe how the countercurrent mechanism in the kidney operates to produce hypertonic or hypotonic urine. Add a note on micturition reflex. 3+5
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What is menstrual cycle? Explain the ovarian changes taking place during menstrual cycle. 3+7
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Write a short notes on the following: 5x2
- Oral contraceptive pills.
- Acromegaly.
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Explanation the following statements: 5x4
- Older persons show presbyopia.
- Cryptorchids are usually causes infertility.
- Lactation is a natural method of contraception.
- Thyroid dwarfs are usually mentally retarded.
- Hemi section of spinal cord affects both sides of the body.
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Choose the correct option of each of the following. 10x1
- Which of the following is true of the tubular fluid that passes through the lumen of the early distal tubule in the region of the macula densa ?
- It is usually isotonic
- It is usually hypotonic
- It is usually hypertonic
- It is hypertonic in antidiuresis
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- Which of the following is true of the tubular fluid that passes through the lumen of the early distal tubule in the region of the macula densa ?
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