JNTU
JNTU B.Tech IV FUNDAMENTALS OF BIOMEDICAL APPLICATIONS Previous Question Paper (January/February - 2023 - R18)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
Give the Nernst equation for electrode potential.
Answer
The Nernst equation is given by:
Where E is the electrode potential, E₀ is the standard potential, R is the gas constant, T is the absolute temperature, n is the number of electrons, F is Faraday's constant, and C₁/C₂ are the ionic concentrations.
Differentiate between action potential and resting potential.
Answer
Resting potential is the stable, negative electrical charge across the cell membrane when the cell is at rest (typically -70 mV). Action potential is a rapid, transient reversal of this membrane potential (depolarization followed by repolarization) that occurs when a cell is stimulated to transmit an electrical signal.
Name the parts of the heart conduction system.
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What are the requirements of physiological signal amplifier?
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What is korotkoft sound?
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Discuss about the origin of heart sounds.
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Differentiate between external pacemaker and implanted pacemaker.
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What are the advantages diathermies?
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Summarize latency in EMG.
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Give the frequency range & amplitude of EEG and EMG waves.
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Part B
Sketch the block diagram of biomedical instrumentation system and explain the function of each block.
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Draw the structure of a living cell of a body and explain its constituents.
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With help of neat diagram, explain the electrical activity associated with one contraction of muscles.
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Name the different propagation methods of action potentials.
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Justify how bipolar leads can be used for measurement of ECG with help of neat diagrams.
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Enumerate and explain the different ECG waves and intervals.
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Illustrate the working of the cardiac conduction path with neat diagram.
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Explain the working principle of a ECG machine with a neat block diagram.
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Describe the working principle of ultrasonic blood pressure measurement.
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Explain the measurement of heart sound with suitable diagram.
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Justify and explain how electromagnetic principle can be used for measurement of blood flow with help of neat diagram.
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Discuss the Oscillometric blood pressure measurement method.
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Explain the basic principle of operation of an ultrasonic diathermy unit.
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With help of neat block diagram, explain the working of hemodialysis machine.
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Explain the working principle of surgical diathermy unit with a neat block diagram.
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What is a Synchronized defibrillator? Draw a block diagram of it and explain its working.
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Discuss in brief about any one type of pneumotachmeter with relevant diagram.
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With a neat diagram, explain the working principle of EMG.
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What is EMG nerve conduction velocity? Explain the process and purpose of EMG NCV test.
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Explain the different modes of ventilator.
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