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Name of the University : The Tamilnadu Dr. M.G.R. Medical University
Degree : First M.B.B.S
Subject Code/Name : 4054 Physiology including Biophysics – II
Paper : Paper IV
Document Type : Question Bank
Website : web.tnmgrmu.ac.in

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Physiology including Biophysics – II :
August 2008 :
I. Essay Questions : (2 x 15 = 30)
1. Enumerate the descending tracts of spinal cord. Describe in detail the pyramidal tracts. Mention its functions and effects of lesion at different levels.
2. Define arterial blood pressure. Describe the nervous regulation of arterial blood pressure.

II. Write Short notes on : (10 x 5 = 50)
1. Surfactant.
2. Chloride Shift.
3. Artificial respiration.
4. Taste Pathway.
5. Effects of lesion in optic pathway.
6. Brown sequard syndrome.
7. Functions of Thalamus.
8. Pacemaker Potential.
9. Regulation of coronary circulation.
10. Neuromuscular transmission.

III. Short Answer Questions : (10 x 2 = 20)
1. Define sarcomere. Mention normal length of sarcomere.
2. Myasthenia gravis.
3. Windkissel effect.
4. Phonocardiogram.
5. Haldane’s effect.
6. VO2 Max.
7. Babinski sign.
8. Alpha block.
9. Functions of Aqueous humor.
10. Rinne’s Test.

February 2009 :
I. Essay Questions : (2 x 15 = 30)
1. Name the functional divisions of the cerebellum. Describe the structure, connections, and functions of cerebellum. Mention two signs of cerebellar lesions.
2. Define cardiac cycle. Describe in detail with the help of a diagram. The mechanical changes during cardiac cycle. Add a note on heart sounds.

II. Write Short notes on : (10 x 5 = 50)
1. Neuro-muscular junction.
2. Compare rem and nonrem sleep.
3. Triple response.
4. Describe formation, circulation and functions of cerebrospinal fluid (C.S.F.).
5. Functions of vestibular apparatus.
6. Explain ‘Dark Adaptation’.
7. Organ of corti.
8. Describe decompression sickness.
9. Describe chemical control of respiration
10. What is myasthenia gravis. Describe the biological basis of its treatment.

III. Short Answer Questions : (10 x 2 = 20)
1. Explain the basic defect in astigmatism and its correction.
2. Draw a labelled diagram of arterial pulse and explain.
3. Draw a labelled diagram of pathways for taste.
4. Rigor mortis.
5. Phantom limb.
6. Oxygen debt.
7. What is Bohr’s effect? What is its physiologic significance?
8. Draw a normal E.C.G. and label it.
9. Refractory period.
10. Define Terms : Chronaxie, Rheobase and utilization time.