#control of breathing

Lung Volumes, Capacities and Regulation

Hyperventilation causes arterial PCO2 to:

Go with C — Decrease. Within Lung Volumes, Capacities and Regulation, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, Decrease is the option that correctly names the structure, process, or principle asked for in Lung Volumes, Capacities and Regulation. Holding that picture in mind makes Decrease feel natural rather than something you only memorise. Link the term to a real body example (organ, tissue, or ion flow) so the idea stays concrete under exam pressure. A short mental diagram helps — start from stimulus or structure, follow the pathway, and stop at the functional result described by Decrease.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Lung Volumes, Capacities and Regulation

Peripheral chemoreceptors are located in:

Pick B: Carotid and aortic bodies. Thinking about Lung Volumes, Capacities and Regulation in a practical way — what the structure does, or what the process achieves — leads you here. Clinically and academically, the same logic shows up again and again: location matters here: Carotid and aortic bodies is the structure or site that matches the description. Hence Carotid and aortic bodies is correct. Treat this as a building block for the rest of Lung Volumes, Capacities and Regulation; neighbouring topics often reuse the same principle. Keep a one-line summary card for this idea and revisit it before the paper; short, repeated review beats long cramming sessions.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Lung Volumes, Capacities and Regulation

Central chemoreceptors are primarily sensitive to changes in:

Answer: B) Blood pH due to CO2. For Lung Volumes, Capacities and Regulation, once you lock onto the key mechanism or definition, Blood pH due to CO2 is the clear fit. If you restate the concept in your own words, the functional job described in the stem is exactly what Blood pH due to CO2 does in Lung Volumes, Capacities and Regulation. So Blood pH due to CO2 is the clean, accurate selection. If a similar stem appears later, start from the same core fact and you will land on the same kind of answer. In class notes, highlight this same phrase next to the related diagram so the wording and the picture reinforce each other.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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Lung Volumes, Capacities and Regulation

Pontine respiratory group (PRG) was earlier known as:

The correct answer is B: Pneumotaxic center. In Lung Volumes, Capacities and Regulation, this idea is central because it matches how the body actually works in everyday teaching examples. Put simply, Pneumotaxic center is the option that correctly names the structure, process, or principle asked for in Lung Volumes, Capacities and Regulation. That is why Pneumotaxic center is the option that holds up when you check it against basic physiology. When you revise, say the answer out loud with one short reason attached; that sticks better than rote lists. Remember that physiology questions reward precise language: name the process, the location, and the outcome, then match that to the option text.

Ref: Animal physiology is Unit 7 of the CSIR NET Life Science Syllabus, covering core body systems. It accounts for roughly 10% of the total marks in Sections B and C.

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