Physiology Paper-1 (Supplementary), 2023 MBBS Batch ABVMU Lucknow

ATAL BIHARI VAJPAYEE MEDICAL UNIVERSITY, LUCKNOW

MBBS DEGREE EXAMINATION - Ist PROFESSIONAL - SUPPLEMENTARY EXAM - DEC - 2024

PHYSIOLOGY - PAPER - I

PAPER CODE: 2421130002

SECTION A - Multiple Choice Questions (MCQs)

Note: Choose one correct answer in the OMR sheet provided. No overwriting should be done.

SET: D Time: 20 Minutes

• 1. Twitch of a single motor unit is called:

• a) Chorea

• b) Tremor

• c) Myoclonic jerk

• d) Fasciculation

• 2. Intracellular sorting and packing is done in:

• a) Ribosome

• b) Golgi complex

• c) Mitochondria

• d) Endoplasmic reticulum

• 3. Sodium enters the Cardiac muscle in which phase?

• a) Relative refractory period

• b) Depolarization

• c) Repolarization

• d) Relaxation phase

• 4. Within physiological limits, Laminar flow is dependent on:

• a) Viscosity

• b) Critical closing pressure

• c) Critical velocity

• d) Constant velocity

• 5. Pancreatic juice is rich in:

• a) Bicarbonate ions

• b) Calcium ions

• c) Sodium ions

• d) Chloride ions

• 6. Mass peristalsis occurs in:

• a) Large Intestine

• b) Stomach

• c) Esophagus

• d) Small Intestine

• 7. Which of the following causes coronary vasodilatation:

• a) Decreased nucleotides

• b) Increased Oxygen

• c) Decreased Carbondioxide

• d) Increased potassium ion

• 8. Type of shock seen after Myocardial infarction is:

• a) Cardiogenic

• b) Septicemic

• c) Hypovolemic

• d) Anaphylactic

• 9. Spirometry cannot measure:

• a) Expiratory reserve volume

• b) Residual Volume

• c) Inspiratory reserve volume

• d) Tidal volume

• 10. Nerve fiber with maximum diameter is:

• a) Aα

• b) Aβ

• c) C

• d) B

• 11. Alkalosis is when blood pH is more than:

• a) 7.45

• b) 7.25

• c) 7.35

• d) 7

• 12. P-R interval is said to be prolonged when it exceeds:

• a) 0.20 sec

• b) 0.10 sec

• c) 0.05 sec

• d) 0.15 sec

• 13. Which of the following is transported through RBC membrane by Facilitated diffusion:

• a) Sodium

• b) Glucose

• c) Oxygen

• d) Glycine

• 14. Cyanosis can be clinically detected when deoxygenated hemoglobin rises above:

• a) 50 g/dL

• b) 5 g/dL

• c) 0.5 g/dL

• d) 0.05 g/dL

• 15. Erythropoietin is mainly produced in:

• a) Lungs

• b) Kidney

• c) Liver

• d) Spleen

• 16. HIV Virus causes destruction of:

• a) Memory T Cells

• b) Cytotoxic T Cells

• c) Helper T cells

• d) Suppressor T Cells

• 17. Which of the following is NOT seen in acclimatization to High altitude:

• a) ↑ 2,3-BPG

• b) ↑ RBC Mass

• c) Diffusion Capacity of Lungs

• d) Capillary Density

• 18. Amount of Dissolved oxygen in plasma is NOT dependent on:

• a) Arterial O₂ tension

• b) Atmospheric Pressure

• c) Hemoglobin

• d) Alveolar pressure

• 19. Troponin C binds to calcium released from:

• a) Sarcoplasmic Reticulum

• b) Sarcolemma

• c) Blood

• d) T tubule

• 20. Jumping of depolarization from node to node is known as:

• a) Chronaxie

• b) Orthodromic conduction

• c) Saltatory conduction

• d) Antedromic conduction

MBBS DEGREE EXAMINATION - Ist PROFESSIONAL-SUPPLEMENTARY EXAM - DEC- 2024 ATAL BIHARI VAJPAYEE MEDICAL UNIVERSITY, LUCKNOW

PHYSIOLOGY - PAPER - I

Max. Marks: 100 Marks (80 Theory + 20MCQs) TIME: 3 Hrs

NOTE:

• This question paper consists of two sections: Section A- Multiple Choice Questions and Section B- Theory Questions.

• Both the section has different paper code. Write correct paper code on respective sheet.

• Write correct MCQ paper set on OMR sheet.

• Answer MCQs on the provided OMR sheet and theory questions on the provided answer booklet.

SECTION B-THEORY QUESTIONS

PAPER CODE: 2421230002

Q.1 Long Answer Questions 15 MARKS

i) Define Cardiac Cycle. 3 marks

ii) Describe the various pressure volume changes taking place during cardiac cycle with the help of a diagram. 7 marks

iii) Add a note on Heart sounds. 5 marks

Q.2 Clinical Case Scenario based Structured Question (15 MARKS)

A newborn baby with pallor and severe jaundice was referred to pediatrician. Detailed history revealed that, this is couple's second baby. First baby didnot have any jaundice, mother's blood group is B-ve and father's blood group is B+ve. Mother had not received any specific treatment at the time of 1st delivery.

i) What could be the probable diagnosis? 3 marks

ii) Explain physiological basis of this condition. 6 marks

iii) Mention preventive and treatment strategies 6 marks

Q.3 Short Note Question (Approx 500 Words) 5 X 6 = 30 MARKS

i) Role of ATP in cellular functioning

ii) Neuromuscular transmission

iii) Define and classify Hypoxia

iv) Muscles of respiration

v) Mechanism of salivary secretion

Q.4 Short Answer Questions (Within 100 Words) 5 X 4 = 20 MARKS

i) Positive feedback mechanism

ii) Resting Membrane Potential

iii) Factors influencing Venous return

iv) Landsteiner's Law

v) Gastrin Hormone

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