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#mechanics of breathing practice

2 public questions tagged with this topic.

Cardiac Cycle and Regulation

External intercostal muscles act during inspiration by:

Go with B — Elevating ribs. Within Cardiac Cycle and Regulation, that statement lines up with the standard definition and the usual exam wording you’ll see. In plain terms, Elevating ribs is the option that correctly names the structure, process, or principle asked for in Cardiac Cycle and Regulation. Holding that picture in mind makes Elevating ribs 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 Elevating ribs.

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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Cardiac Cycle and Regulation

During quiet inspiration, alveolar pressure compared to atmospheric pressure is:

Correct option is C, Slightly lower. In Cardiac Cycle and Regulation, the accurate description is Slightly lower, and that is what you should commit to memory. Keep the definition tight and the role clear — Slightly lower is the option that correctly names the structure, process, or principle asked for in Cardiac Cycle and Regulation. Then Slightly lower is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Slightly lower.

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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