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PSN COLLEGE OF ENGINEERING AND TECHNOLOGY (Autonomous), Melathediyoor, Tirunelveli – 627152
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 QUESTION BANK (2025-2026) / Even
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Branch: B.E-EEEDepartment of Electrical and Electronics EngineeringYear / Semester: IV/07
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Course Code: EE606403Course Name: MEDICAL ELECTRONICS
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Date : Session: FNMax. Marks: 50 Marks
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Course Outcomes (COs): At the end of the course, the student will be able to
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CO1Understand the basic knowledge of physiology
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CO2Explore the occurrence of potential and operation of cardiovascular measurements.
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CO3Comprehend the electro-physiological, blood flow and non - electrical paramete rmeasurements.
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CO4Understand the medical imaging parameter measurements.
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CO5Discuss the methods used for monitoring the patients.
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BL – Bloom’s Level (1- Remembering, 2- Understanding, 3 – Applying, 4 – Analysing, 5 – Evaluating, 6 - Creating); CO – Course Outcome;
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UNIT I
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Q. No.PART-A ( 2 Marks)MarksCOBL
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1Explain the Cell Structure.2CO11
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2Define Resting Potential.2CO11
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3Define Action Potential.2CO11
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4Explain Bioelectric Potential.2CO12
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5Name the factors that are considered in the design of biomedical instrument system.2CO11
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6State the principal of the sodium pump.2CO11
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7What are the various parts of generalized instrumentation system?2CO11
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8Give the classifications of biomedical instruments.2CO12
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9Write down the Nernst equation of action potential2CO12
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10What is the function of nervous system?2CO12
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11Name the three major parts of the brain?2CO12
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12What is the function of the spinal cord?2CO12
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13Name the parts of the heart conduction system2CO11
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14What is cardiac output?2CO11
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15What are the characteristics of resting potential?2CO11
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Q. No.PART – B (13 Marks)MarksCOBL
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1Explain in detail with cell and its structure Cell Theory:13CO14
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2Describe the following in details (i)                 Resting Potential (ii)               Action Potential13CO14
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3Name the three major parts of the brain and explain their working. 13CO14
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4What is the function of the ‘nervous system’ and what are its parts?13CO14
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5Illustrate with the help of a block diagram a generalized medical instrumentation system and its various subsystems13CO14
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6How does blood circulate the body . Explain with neat diagram13CO14
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7Describe the structure of the heart with neat diagram13CO14
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8What is the function of the spinal cord and explain with neat diagram13CO14
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UNIT II
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Q. No.PART-A ( 2Marks)MarkCOBL
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1List the types of bioelectric potentials.2CO22
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2What is the function of a freewheeling diodein a phase controlled rectifier?CO5
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2Summarize electrode and the types of electrodes used in the bipolar measurement.2CO22
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3Define Lead. Name the type of leads used for ECG.2CO21
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4List out the disadvantages of surface electrodes.2CO22
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5Compare the signal characteristics of ECG and PCG2CO22
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6What is EOG?2CO22
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7Draw typical ECG waveform.2CO21
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8What are the peak amplitude and frequency response for ECG, EEG and EMG.2CO22
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9What are the important bands of frequencies in EEG and state their importance2CO22
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10Name the electrodes used for recording EMG and ECG.2CO22
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11What are perfectly polarized and perfectly non polarized electrodes?2CO22
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12State the importance of biological amplifiers. 2CO22
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13What is evoked potential?2CO21
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14What are the requirements for bio-amplifiers?2CO22
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15What is leakage current? Define hazards 2CO22
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Q. No.PART – B (13 Marks)MarksCOBL
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1Describe in detail with chopper amplifier, Preamplifiers and differential amplifiers with neat diagram13CO24
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2Describe the Electroencephalograph with block diagram and explain13CO24
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3What are the different type of electrode and explain with neat diagram of microelectrode13CO24
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4What is an ECG ‘Lead’? Describe various types of ‘Leads’ used for recording ECG signal.13CO24
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5Explain with neat diagram of depth and needle electrode13CO24
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6Explain with neat diagram of surface electrode and describe13CO24
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7Define leakage current and explain its various types with the help of a diagram.13CO24
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8Explain the function of an ‘Electromyograph’ machine. What are the special characteristics of preamplifiers used in EMG machines?13CO24
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UNIT III
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Q. No.PART-A ( 2Marks)MarkCOBL
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1What are the typical values of blood pressure and pulse rate of an adult?2CO32
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2What are systolic and diastolic pressures?2CO32
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3State the principle behind the indicator dilution method.2CO31
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4What are the uses of gas analyzers?2CO32
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5What is the purpose PO2 electrode is used?2CO32
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6Elaborate the principle used in pulse rate measurement.2CO32
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7What are korotkoff sounds?2CO31
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8List the various indirect methods for the measurement of blood pressure.2CO32
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9What is ultrasonic blood flow meter?2CO32
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10What is pluse oxymeter?2CO31
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11Interpret the importance of Plethysmographs.2CO32
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12Explain the principle of sphygmomanometer2CO32
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13What are the methods involved in direct blood pressure measurement?2CO32
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14What are the different types of blood flow meters?2CO32
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15What is the pH value for blood?What is meant by PH2CO32
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Q. No.PART – B (13 Marks)MarksCOBL
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1Explain impedance pneumography for measurement of respiratory function. What are the limitations of this method?13CO34
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2What is blood pCO2 and how is it measured? Explain the construction of blood pCO2 electrode.13CO34
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3What is the principle of ‘Indicator Dilution Method’ for measurement of cardiac output? Explainthe working of dye dilution method13CO34
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4Name the various methods for measurement of blood flow and explain one of them in detail.13CO34
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5Explain the working of a basic water-sealed spirometer. What are the limitations of such an instrument13CO34
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6What is a pneumotachometer and what for it is used? Explain the construction and working of Fleisch Pneumotachometer
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What is the function of a blood gas analyser? Why is it necessary to maintain acid-base balance in the body? Indicate the normal blood pH value.
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8Explain the technique for measuring blood pO2. Draw the construction of blood pO2 electrode andthe circuit diagram for measurement of signal developed at the electrode13CO34
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UNIT IV
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Q. No.PART-A ( 2Marks)MarkCOBL
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1What are the problems in implant telemetry?2CO42
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2Specify the frequencies used for biotelemetry2CO42
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3What are the important parameters of MRI?2CO42
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4What is the modulation techniques used for biotelemetry? Mention the reason for adopting that modulation scheme2CO42
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5Draw the block diagram of a Bio-Telemetry system2CO42
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6List the characteristics of X-ray.2CO42
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7In what way X-ray equipments are useful f or diagnostic purpose?2CO42