Control of Ventilation
- Previous year questions on Control of Ventilation for NEET PG (National Eligibility cum Entrance Test - Postgraduate), from the Physiology section of the exam.
- Most questions here come from previous-year papers of Indian postgraduate medical entrance and licensing exams; where a paper and year are recorded the question carries them. The image-based questions are original vignettes written around an openly licensed figure, and were never asked in any exam.
- 74 live questions in Control of Ventilation.
- 4 of 74 questions carry a verified exam year: 2018, 2019.
- Physiology is worth about 17 of 300 questions on the exam. See every subject’s weightage.
- Question set last updated 6 Sept 2026.
Q1.Which of the following neurons predominantly fire during forceful expiration?
- ADorsal group of neurons
- BVentral group of neurons✓ Correct answer
- CPneumotaxic center
- DChemoreceptors
Q2.Peripheral chemoreceptors responds to hypoxia by oxygen sensitive:
- ANa+ channel
- BCa+2 channel
- CK+ channel✓ Correct answer
- DCl- channel
Q3.In forceful expiration, which of the following neurons gets fired?
- AVRG✓ Correct answer
- BDRG
- CPneumotaxic centre
- DChemoreceptors
Q4.Carotid body contains islands of two types of cells, type I and type II cells, surrounded by fenestrated sinusoidal capillaries. Type I cells are excited by hypoxia, and the principal transmitter appears to be
- ASerotonin
- BAdrenaline
- CDopamine✓ Correct answer
- DPotassium
Q5.Which of the following has prolonged inspiratory spasms that resemble breath holding?
- ABiot breathing
- BApneustic breathing✓ Correct answer
- CCheyne stokes breathing
- DKussmaul breathing
Q6.Peripheral chemoreceptors respond to hypoxia using which channel
- ASodium channel
- BChloride channel
- CCalcium channel
- DPotassium channel✓ Correct answer
Q7.A patient with parotid gland cancer has damage to the glossopharyngeal nerve. As a result, which of the following respiratory reflexes will be impaired?
- AHering-Breuer inflation reflex
- BJuxta pulmonary capillary ( J) receptor reflex
- CIrritant airway reflex
- DCarotid body chemoreceptor reflex✓ Correct answer
Q8.The best stimulator of respiratory centre is:
- ADecrease in arterial carbon dioxide level
- BIncrease in arterial carbon dioxide level✓ Correct answer
- CIncrease in arterial oxygen level
- DNone of the above
Q9.Respiratory rhythm generation center is located at:
- ADorsal respiratory group
- BPre-Botzinger complex✓ Correct answer
- CVentral respiratory neurons
- DPneumotaxic center
Q10.What is responsible for rhythm generation of inspiration?
- ADorsal nucleus of vagus
- BPre botzinger complex✓ Correct answer
- Cventral respiratory neurons
- DPneumotaxic center
Answer key
Q1: B. Ventral group of neurons; Q2: C. K+ channel; Q3: A. VRG; Q4: C. Dopamine; Q5: B. Apneustic breathing; Q6: D. Potassium channel; Q7: D. Carotid body chemoreceptor reflex; Q8: B. Increase in arterial carbon dioxide level; Q9: B. Pre-Botzinger complex; Q10: B. Pre botzinger complex.
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