Aiims Physiology - 10 Past Questions
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Chymotrypsinogen is a
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Zymogen
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Exopeptidase
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Transpeptidase
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None of the above
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This quiz titled 'AIIMS physiology - 10 past questions' assesses knowledge in key physiological concepts relevant to AIIMS exams. It covers topics like catecholamines, chymotrypsinogen, arterial pressure, and more, crucial for medical students preparing for competitive exams.
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- 2.
Mean Arterial Pressure is
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(SPB+DBP)/3
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(SPB+2DBP)/3
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(SPB+3DBP)/2
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None of the above
Correct Answer
A. (SPB+2DBP)/3Explanation
The correct answer is (SPB+2DBP)/3. Mean Arterial Pressure (MAP) is calculated by taking the sum of the Systolic Blood Pressure (SPB) and twice the Diastolic Blood Pressure (DBP), and then dividing it by 3. This formula is used to estimate the average blood pressure in a person's arteries during a single cardiac cycle. By including both the systolic and diastolic pressures, the formula provides a more accurate representation of the overall pressure exerted on the arterial walls.Rate this question:
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- 3.
FALSE about glomerular capillary blood flow
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Glomerular oncotic pressure > general oncotic pressure
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Glomerular oncotic pressure < general oncotic pressure
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Glomerular oncotic pressure = general oncotic pressure
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None of the above
Correct Answer
A. Glomerular oncotic pressure < general oncotic pressureExplanation
The glomerular oncotic pressure refers to the pressure exerted by proteins in the glomerular capillaries. The general oncotic pressure refers to the pressure exerted by proteins in the systemic circulation. In a normal situation, the glomerular oncotic pressure is lower than the general oncotic pressure. This is because some proteins are filtered out of the glomerular capillaries into the renal tubules, leading to a decrease in oncotic pressure. Therefore, the correct answer is "Glomerular oncotic pressure < general oncotic pressure."Rate this question:
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- 4.
Catecholamines act through
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Four pass receptor
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Single pass receptor
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Seven pass receptor
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Voltage gated ion channel receptor
Correct Answer
A. Seven pass receptorExplanation
GPCR/serpentine receptorsRate this question:
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- 5.
Least likely physiological change in pregnancy
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Increase in intra vascular volume
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Increase in stroke volume
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Increase in cardiac output
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Increase in peripheral vascular resistance
Correct Answer
A. Increase in peripheral vascular resistanceExplanation
Pregnancy is a high output state !Rate this question:
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- 6.
Uterine flow at term
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50 ml/min
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100 – 150 ml/min
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350 – 375 ml/min
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500 – 750 ml/min
Correct Answer
A. 350 – 375 ml/minExplanation
During pregnancy, the uterus receives a rich blood supply to support the growing fetus. Uterine flow refers to the amount of blood flowing through the uterus per minute. At term, which is the final stage of pregnancy, the uterus requires a higher blood flow to meet the demands of the developing baby. The range of 350-375 ml/min is considered the correct answer because it represents the appropriate uterine flow at this stage.Rate this question:
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- 7.
During moderate exercise, blood flow to brain,
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Increases
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Decreases
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No Effect
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First increases then decrease
Correct Answer
A. No EffectExplanation
During moderate exercise, blood flow to the brain remains unaffected. This is because the body's autoregulatory mechanisms work to maintain a constant blood flow to the brain regardless of the level of physical activity. These mechanisms ensure that the brain receives a steady supply of oxygen and nutrients, allowing it to function optimally during exercise. Therefore, the blood flow to the brain does not increase or decrease during moderate exercise, hence the answer is "No Effect".Rate this question:
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- 8.
Which is not a second messenger?
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CAMP
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Guanylyl cyclase
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IP3
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Diacylglycerol
Correct Answer
A. Guanylyl cyclaseExplanation
Guanylyl cyclase is not a second messenger. Second messengers are molecules that transmit signals from the cell surface to the interior, amplifying and relaying the signal. cAMP, IP3, and diacylglycerol are all examples of second messengers, as they are involved in signal transduction pathways. Guanylyl cyclase, on the other hand, is an enzyme that produces the second messenger cyclic GMP (cGMP) in response to extracellular signals. Therefore, it is not a second messenger itself.Rate this question:
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- 9.
Kinemyograhy is used for
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Monitoring of neuromuscular function
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Monitoring of muscle spindle activity
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Monitoring of Exercise capacity
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None
Correct Answer
A. Monitoring of neuromuscular functionExplanation
Kinemyography (KMG) is a technique used for monitoring neuromuscular function. It involves the measurement and analysis of muscle movements and contractions to assess the function and activity of the neuromuscular system. KMG can provide valuable information about muscle strength, coordination, and response to stimuli, making it useful in various clinical and research settings. This technique helps in evaluating and diagnosing neuromuscular disorders, monitoring the progress of rehabilitation programs, and assessing the effects of interventions or treatments on muscle function.Rate this question:
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- 10.
Which is NOT related with menstrual changes in humans
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Hormonal changes
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Vaginal cytology changes
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Endometrial cycle
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Estrous cycle
Correct Answer
A. Estrous cycleExplanation
Estrous cycle happens in animals !Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
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Aug 12, 2013Quiz Created by
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