Dyspnea is defined as:
Answer: C) Difficulty in breathing. For Lung Volumes, Capacities and Regulation, once you lock onto the key mechanism or definition, Difficulty in breathing is the clear fit. If you restate the concept in your own words, this is mainly a definition check, and Difficulty in breathing is the standard term or meaning used in Lung Volumes, Capacities and Regulation. So Difficulty in breathing 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.