Download RGUHS BNYS 2015 April 1st Year 2527 Physiology Paper I Question Paper

Rajiv Gandhi University of Health Sciences

I Year B.N.Y.S Degree Examination – April 2015

Time: Three Hours Max. Marks: 80 Marks

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PHYSIOLOGY – Paper I

QP Code: 2527

(QP contains two pages)

Your answers should be specific to the questions asked.

Draw neat, labeled diagrams wherever necessary.

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Multiple Choice Questions 10 X 1 = 10 Marks

1. Which of the following has the highest pH?
   1. Gastric juice
   2. Pancreatic juice
   3. Saliva
   4. Colonic luminal contents

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2. Compared to hepatic bile, gall bladder bile contains a reduced concentration of which of the following?
   1. Bile acids
   2. Sodium ions
   3. Protons
   4. Glucose

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3. Which part of the ECG corresponds to ventricular repolarization?
   1. The P wave
   2. The QRS duration
   3. The T wave
   4. The U wave

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4. Which of the following normally has a slowly depolarizing prepotential?
   1. Sinoatrial node
   2. Atrial muscle cells
   3. Ventricular muscle cells
   4. Bundle of His

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5. Airway resistance
   1. Is increased if the lungs are removed and inflated with saline
   2. Does not affect the work of breathing
   3. Is increased in paraplegic patients
   4. Is increased in following bronchial smooth muscle contraction

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6. Which of the following has the greatest effect on the ability of blood to transport oxygen?
   1. Capacity of the blood to dissolve oxygen
   2. Amount of hemoglobin in the blood
   3. CO2 contents of red blood cells
   4. pH of proteins

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7. On which of the following does aldosterone exert its greatest effect?
   1. Proximal tubule
   2. Thin portion of the loop of Henle
   3. Thick portion of the loop of Henle
   4. Cortical collecting duct

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8. In the absence of vasopressin, the greatest fraction of filtered water is absorbed in the
   1. Proximal tubule
   2. Loop of Henle
   3. Distal tubule
   4. Cortical collecting duct

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9. When the radius of the resistance vessels is increased, which of the following is increased?
   1. Systolic blood pressure
   2. Diastolic blood pressure
   3. Viscosity of the blood
   4. Capillary blood flow

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10. Ribosomes in the cell synthesize
    1. Protein
    2. Steroid hormones
    3. Both
    4. None of the above

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Section B

LONG ESSAYS (Answer any two) 2 X 10 = 20 Marks

1. Describe the composition, function and regulation of salivary juice.
2. Describe various cardio vascular reflexes in detail and explain how they regulate heart rate.

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3. Describe the gastro intestinal hormones in detail with their functions.

SHORT ESSAYS (Answer any ten) 10 X 5 = 50 Marks

1. Explain the peculiarities of coronary circulation.
2. Draw a normal ECG and explain how each wave is produced.
3. Explain the intrinsic pathway for coagulation.

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4. Describe Rh factor and its clinical significance.
5. Describe the process of facilitated diffusion.
6. Explain the process of micturition.
7. Describe the changes that occur during acclimatization to high altitude.
8. Define deglutition. Describe the pharyngeal stage of deglutition.

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9. Explain counter current multiplier mechanism.
10. Classify hypoxia. Explain any two of them.
11. Describe defecation reflex.
12. Explain the function of upper respiratory tract.

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