Medical & healthcare

NEET PG & INI-CET - Pre-Clinical Sciences (Anatomy, Physiology & Biochemistry) previous year questions (PYQ)

31,272 previous year NEET PG & INI-CET - Pre-Clinical Sciences (Anatomy, Physiology & Biochemistry) questions, grouped by year, with answers and solutions.

2026 (30459 questions)

Q1.
In clinical evaluation regarding neuromuscular transmission mechanism (Case Vignette #61): Which of the following observations or mechanisms is most accurate?

(A)
Acetylcholine activates muscarinic M2 receptors at skeletal motor end plates
(B)
Opening of voltage-gated K+ channels causes vesicle fusion
(C)
Curare irreversibly blocks presynaptic calcium entry
(D)
Depolarization of axon terminal opens voltage-gated Ca2+ channels, triggering ACh exocytosis
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Q2.
In clinical evaluation regarding carbon dioxide transport in blood (Case Vignette #487): Which of the following observations or mechanisms is most accurate?

(A)
Majority of CO2 is carried as carbamino compounds on albumin
(B)
Majority of CO2 is physically dissolved in plasma
(C)
CO2 does not enter erythrocytes during peripheral transit
(D)
The majority of CO2 is carried in plasma as bicarbonate (HCO3-)
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2025 (65 questions)

Q1.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

What is the crucial legal distinction between the English rule of 'Strict Liability' and Indian 'Absolute Liability'?


(A)
Absolute Liability admits of no statutory exceptions whatsoever (such as Act of God, third-party act, or consent)
(B)
Absolute liability applies only to government-owned public sector enterprises
(C)
Strict liability requires proof of criminal mens rea while absolute liability does not
(D)
Absolute liability caps total damage compensation at 1 lakh rupees
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Q2.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Diamond sparkles brilliantly with internal radiance.

Reason (R): Total internal reflection of light occurs inside diamond because its critical angle is exceptionally small (approximately 24.4°).


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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2024 (125 questions)

Q1.

Higher Academic Core: In advanced conceptual study of 'Brainstem Cerebellum and Cerebral Cortex' in Neuroanatomy & Cranial Nerves, which foundational mechanism is universally verified?

(A)

Empirically validated biological, physical, or social dynamics following standard scientific methodology (Brainstem Cerebellum and Cerebral Cortex)

(B)

Unsubstantiated speculative claims lacking experimental replication or peer verification

(C)

Deterministic models that reject thermodynamic entropy and stochastic variance

(D)

Isolated observations taken under non-standard uncontrolled environmental extremes

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Q2.
In clinical evaluation regarding neuromuscular transmission mechanism (Case Vignette #47): Which of the following observations or mechanisms is most accurate?

(A)
Curare irreversibly blocks presynaptic calcium entry
(B)
Acetylcholine activates muscarinic M2 receptors at skeletal motor end plates
(C)
Opening of voltage-gated K+ channels causes vesicle fusion
(D)
Depolarization of axon terminal opens voltage-gated Ca2+ channels, triggering ACh exocytosis
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2023 (63 questions)

Q1.
In clinical evaluation regarding renal clearance calculation (Case Vignette #36): Which of the following observations or mechanisms is most accurate?

(A)
Clearance of PAH equals GFR
(B)
Clearance of inulin equals the glomerular filtration rate (GFR)
(C)
Clearance of urea is completely independent of flow rate
(D)
Clearance of glucose exceeds inulin clearance
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Q2.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): An employer is vicariously liable for tortious civil wrongs committed by an employee during the authorized course of employment.

Reason (R): The doctrine of vicarious liability is founded on the legal maxims *respondeat superior* (let the master answer) and *qui facit per alium facit per se*.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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2022 (76 questions)

Q1.
In clinical evaluation regarding damage to the common peroneal (fibular) nerve at the fibular neck (Case Vignette #6): Which of the following observations or mechanisms is most accurate?

(A)
Foot drop with loss of eversion and dorsiflexion of the foot
(B)
Inability to plantarflex with loss of Achilles reflex
(C)
Sensory loss confined strictly to the sole of the foot
(D)
Trendelenburg gait due to gluteal weakness
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Q2.
In clinical evaluation regarding lesion of the optic chiasm secondary to a pituitary adenoma (Case Vignette #4): Which of the following observations or mechanisms is most accurate?

(A)
Bitemporal hemianopia due to compression of crossing nasal retinal fibers
(B)
Homonymous hemianopia due to optic tract lesion
(C)
Binasal hemianopia due to internal carotid calcification
(D)
Monocular blindness of the ipsilateral eye
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2021 (67 questions)

Q1.
In clinical evaluation regarding renal clearance calculation (Case Vignette #11): Which of the following observations or mechanisms is most accurate?

(A)
Clearance of inulin equals the glomerular filtration rate (GFR)
(B)
Clearance of PAH equals GFR
(C)
Clearance of urea is completely independent of flow rate
(D)
Clearance of glucose exceeds inulin clearance
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Q2.
In clinical evaluation regarding carbon dioxide transport in blood (Case Vignette #46): Which of the following observations or mechanisms is most accurate?

(A)
Majority of CO2 is physically dissolved in plasma
(B)
CO2 does not enter erythrocytes during peripheral transit
(C)
The majority of CO2 is carried in plasma as bicarbonate (HCO3-)
(D)
Majority of CO2 is carried as carbamino compounds on albumin
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2020 (64 questions)

Q1.
In clinical evaluation regarding damage to the common peroneal (fibular) nerve at the fibular neck (Case Vignette #36): Which of the following observations or mechanisms is most accurate?

(A)
Trendelenburg gait due to gluteal weakness
(B)
Inability to plantarflex with loss of Achilles reflex
(C)
Sensory loss confined strictly to the sole of the foot
(D)
Foot drop with loss of eversion and dorsiflexion of the foot
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Q2.
In clinical evaluation regarding developmental origin of the superior parathyroid glands (Case Vignette #4): Which of the following observations or mechanisms is most accurate?

(A)
First pharyngeal pouch
(B)
Second pharyngeal pouch
(C)
Third pharyngeal pouch
(D)
Fourth pharyngeal pouch
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2019 (70 questions)

Q1.
In clinical evaluation regarding renal clearance calculation (Case Vignette #17): Which of the following observations or mechanisms is most accurate?

(A)
Clearance of inulin equals the glomerular filtration rate (GFR)
(B)
Clearance of glucose exceeds inulin clearance
(C)
Clearance of urea is completely independent of flow rate
(D)
Clearance of PAH equals GFR
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Q2.
In clinical evaluation regarding compression in the carpal tunnel beneath the flexor retinaculum (Case Vignette #47): Which of the following observations or mechanisms is most accurate?

(A)
Musculocutaneous nerve compression causing biceps paralysis
(B)
Median nerve compression affecting thenar muscles and lateral 3.5 digits sensation
(C)
Ulnar nerve compression causing claw hand
(D)
Radial nerve compression causing wrist drop
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2018 (71 questions)

Q1.
In clinical evaluation regarding compression in the carpal tunnel beneath the flexor retinaculum (Case Vignette #12): Which of the following observations or mechanisms is most accurate?

(A)
Musculocutaneous nerve compression causing biceps paralysis
(B)
Radial nerve compression causing wrist drop
(C)
Median nerve compression affecting thenar muscles and lateral 3.5 digits sensation
(D)
Ulnar nerve compression causing claw hand
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Q2.
In clinical evaluation regarding renal clearance calculation (Case Vignette #15): Which of the following observations or mechanisms is most accurate?

(A)
Clearance of glucose exceeds inulin clearance
(B)
Clearance of urea is completely independent of flow rate
(C)
Clearance of PAH equals GFR
(D)
Clearance of inulin equals the glomerular filtration rate (GFR)
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2017 (74 questions)

Q1.
In clinical evaluation regarding michaelis-menten kinetics under competitive inhibition (Case Vignette #2): Which of the following observations or mechanisms is most accurate?

(A)
Apparent Km decreases while Vmax decreases
(B)
Both Km and Vmax increase proportionally
(C)
Apparent Km increases while Vmax remains unchanged
(D)
Km remains unchanged while Vmax decreases
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Q2.
In clinical evaluation regarding injury to the spinal accessory nerve (cn xi) in the posterior cervical triangle (Case Vignette #66): Which of the following observations or mechanisms is most accurate?

(A)
Deviation of the tongue to the injured side
(B)
Inability to shrug the ipsilateral shoulder and weakness in head rotation
(C)
Loss of sensation over the anterior triangle of neck
(D)
Ptosis and miosis of the ipsilateral eye
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2016 (68 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Under the Constitution of India, the judiciary enjoys structural independence from executive and legislative interference.

Reason (R): Judges of the Supreme Court and High Courts have security of tenure and their judicial salaries are charged directly to the Consolidated Fund of India.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

Which Fundamental Right under Part III of the Constitution was invoked as the constitutional foundation for environmental protection?


(A)
Article 21: Right to Life and Personal Liberty (interpreted to include the right to a clean and wholesome environment)
(B)
Article 19(1)(g): Right to trade and business
(C)
Article 14: Right to equality before law
(D)
Article 25: Freedom of conscience
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2015 (70 questions)

Q1.
In clinical evaluation regarding developmental origin of the superior parathyroid glands (Case Vignette #9): Which of the following observations or mechanisms is most accurate?

(A)
Fourth pharyngeal pouch
(B)
Third pharyngeal pouch
(C)
Second pharyngeal pouch
(D)
First pharyngeal pouch
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Q2.
In clinical evaluation regarding lesion of the optic chiasm secondary to a pituitary adenoma (Case Vignette #32): Which of the following observations or mechanisms is most accurate?

(A)
Bitemporal hemianopia due to compression of crossing nasal retinal fibers
(B)
Homonymous hemianopia due to optic tract lesion
(C)
Binasal hemianopia due to internal carotid calcification
(D)
Monocular blindness of the ipsilateral eye
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