Q.P. Code: 103001 Reg. no.:.........
First Professional MBBS Degree Examinations August 2018
Physiology - Paper I
Time: 3 Hours Total Marks: 50
- Answer all questions
- Draw Diagrams wherever necessary
Long essay (10)
1. A 16 years old NCC cadet, lined up for a parade fell down unconscious. He had been
standing in the hot sun for an hour. On examination, his blood pressure was 60/50
mm Hg, pulse was regular and was breathing normally. Soon, he regained
consciousness from your knowledge of physiology. Answer the following:
- What is the most likely diagnosis
- What are the factors determining blood pressure
- What are the physiological principles applicable for the immediate management
- here
- Explain the short term regulation of blood pressure (1+3+2+4)
Short essays (2x5 =10)
2. Describe the characteristics of the pulmonary circulation
3. Describe the role of the kidneys in regulation of plasma pH
Answer briefly (5x3=15)
4. Second stage of deglutition
5. Pulmonary surfactant
6. Glomerular filtration rate
7. Erythroblastosis fetalis
8. Starlings forces
Draw and label (2x2½ =5)
9. Pressure volume changes in the lungs and pleural space during normal respiration
10.Mechanism of gastric acid secretion
Explain the physiological basis of the following (5x2=10)
11.Hyperventilation is seen when low landers travel to high altitude
12.Gastrectomy causes megaloblastic anemia
13.Heparin prevents coagulation of blood in vivo
14.HIV infection reduces immunity
15.Proteinuria occurs in renal diseases
