Final answer:
The statement that vital capacity equals the sum of inspiratory reserve volume, expiratory reserve volume, and tidal volume is True. Vital capacity is an essential measurement in assessing lung health and respiratory function.
Step-by-step explanation:
Vital capacity (VC) is a lung measurement that indicates the maximum amount of air a person can expel from their lungs after a maximum inhalation. It can be calculated by adding the expiratory reserve volume (ERV), tidal volume (TV), and inspiratory reserve volume (IRV). So, the statement 'Vital capacity is the summation of inspiratory reserve volume, expiratory reserve volume, and tidal volume' is True.
Specifically, the tidal volume is the amount of air inhaled or exhaled during normal breathing, the inspiratory reserve volume is the extra air that can be inhaled beyond the normal tidal inhalation, and the expiratory reserve volume is the additional air that can be forcibly exhaled following the end of a normal tidal exhalation. These volumes together comprise the vital capacity and are an important indicator of lung health and respiratory function.