Expiratory Reserve Volume (ERV) — NEET Biology
📚 Practice ConceptExpiratory Reserve Volume (ERV): A person can expire by a forcible expiration. This averages 1000 mL to 1100 mL.
Which of the following statements regarding human respiratory volumes and capacities are correct? S1: Vital Capacity (VC) is the maximum volume of air a person can breathe out after a forced inspiration, typically calculated as ERV + TV + IRV. S2: Inspiratory Capacity (IC) is the total volume of air a person can inspire after a normal expiration, mathematically expressed as TV + ERV. S3: The volume of air inspired or expired during a normal respiration, known as Tidal Volume (TV), averages 500 mL, contributing to a minute ventilation of 6000-8000 mL. S4: Functional Residual Capacity (FRC) represents the volume of air that will remain in the lungs after a normal expiration, and it is the sum of Inspiratory Reserve Volume and Residual Volume. S5: Expiratory Reserve Volume (ERV) is the additional volume of air a person can inspire by a forcible inspiration, averaging 2500-3000 mL.
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