Lung Volumes & Capacities — NEET Biology
📚 Practice ConceptDistinguish between (a) IRV and ERV (b) Inspiratory capacity and Expiratory capacity. (c) Vital capacity and Total lung capacity.
Which of the following statements regarding respiratory volumes and capacities are correct? S1: A healthy human breathes approximately 12-16 times per minute, with a typical Tidal Volume (TV) of 500 mL. S2: The total volume of air inspired or expired per minute by a healthy human ranges from 6000 to 8000 mL. S3: Inspiratory Capacity (IC) is calculated as the sum of Tidal Volume (TV) and Expiratory Reserve Volume (ERV). S4: Residual Volume (RV) represents the volume of air remaining in the lungs after a normal expiration and can be directly measured using a spirometer. S5: Vital Capacity (VC) includes ERV, TV, and IRV, representing the maximum volume of air a person can breathe out after a forced inspiration.
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