Conglete the following sentences by selecting the correct...

conglete the following sentences by selecting the correct cpise. W Inspiratory capacity $(\mid C)=$ (i) $+\mid R V$ 3) $\underline{\text { ii }}=T \mathrm{~V}+\mid \mathrm{RV}+\mathrm{ERV}$ N Funcional residual capacity $(\mathrm{FRC})=\mathrm{ERV}+$ (iiii) (i) (ii) (iii) [1. Vial capacity $\quad$ Tidal volume $\quad$ Residual volume El bproory capacity Residual volume Inspiratory reserve volume (i) Tobl wolume Total lung capacity Expiratory capacity

conglete the following sentences by selecting the correct cpise.
W Inspiratory capacity $(\mid C)=$ (i) $+\mid R V$
3) $\underline{\text { ii }}=T \mathrm{~V}+\mid \mathrm{RV}+\mathrm{ERV}$
N Funcional residual capacity $(\mathrm{FRC})=\mathrm{ERV}+$ (iiii)
(i)
(ii)
(iii) [1. Vial capacity $\quad$ Tidal volume $\quad$ Residual volume
El bproory capacity Residual volume Inspiratory reserve volume
(i) Tobl wolume Total lung capacity Expiratory capacity

Key Concepts

Tidal Volume (TV)

Tidal volume is the amount of air inhaled or exhaled in a single normal breathing cycle. It forms the basis for many calculations in respiratory physiology, as several lung capacities and additional volumes build upon this basic volume.

Inspiratory Reserve Volume (IRV)

Inspiratory reserve volume is the extra amount of air that can be inhaled with maximal effort after a normal inspiration. It provides a measure of the lung's capacity to expand its air intake beyond ordinary breathing and is critical for calculating capacities such as inspiratory capacity and vital capacity.

Expiratory Reserve Volume (ERV)

Expiratory reserve volume is the additional amount of air that can be forcibly exhaled after a normal exhalation. It quantifies how much extra air can be expelled from the lungs, thereby playing a key role in determining vital capacity and functional residual capacity.

Residual Volume (RV)

Residual volume is the volume of air that remains in the lungs after a maximal exhalation, ensuring that the alveoli are not completely emptied. This volume is essential for maintaining lung structure and sustaining gas exchange, even when forceful breathing is performed.

Vital Capacity (VC)

Vital capacity is the maximum volume of air that can be exhaled after a maximal inhalation. It is calculated by summing tidal volume, inspiratory reserve volume, and expiratory reserve volume. VC is an important index in evaluating lung function and identifying respiratory impairments.

Functional Residual Capacity (FRC)

Functional residual capacity is the volume of air remaining in the lungs after a normal exhalation. It combines the expiratory reserve volume and the residual volume, reflecting the lung volume at which the respiratory system is at equilibrium during quiet breathing.

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