Define vital capacity. What is its significance?
(N/A) Vital capacity is the maximum volume of air that a person can breathe in after a forced expiration,or the maximum volume of air that a person can breathe out after a forced inspiration. It is calculated as the sum of $IRV + TV + ERV$. In a healthy human adult,it is approximately $3.5-4.5$ litres. Its significance lies in the fact that it provides a reserve of air for increased physical activity,ensures efficient ventilation of the lungs,and facilitates better gaseous exchange between the blood and the environment.
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Complete the missing terms:
$(a)$ Inspiratory Capacity $(IC) = \dots \dots + IRV$
$(b)$ $\dots \dots = TV + ERV$
$(c)$ Functional Residual Capacity $(FRC) = ERV + \dots \dots$
$(a)$ Inspiratory Capacity $(IC) = \dots \dots + IRV$
$(b)$ $\dots \dots = TV + ERV$
$(c)$ Functional Residual Capacity $(FRC) = ERV + \dots \dots$
Medium
View SolutionWhat is the Total Lung Capacity $(TLC)$?
Medium
View Solution$A =$ Gas exchange continues non-stop in the lungs even during exhalation.
$R =$ Lungs have residual air.
$R =$ Lungs have residual air.
Medium
View SolutionMatch the items given in Column $I$ with those in Column $II$ and select the correct option given below:
Column $I$ Column $II$ $(a)$ Tidal volume $(i)$ $2500-3000\,mL$ $(b)$ Inspiratory Reserve volume $(ii)$ $1100-1200\,mL$ $(c)$ Expiratory Reserve volume $(iii)$ $500-550\,mL$ $(d)$ Residual volume $(iv)$ $1000-1100\,mL$
| Column $I$ | Column $II$ |
| $(a)$ Tidal volume | $(i)$ $2500-3000\,mL$ |
| $(b)$ Inspiratory Reserve volume | $(ii)$ $1100-1200\,mL$ |
| $(c)$ Expiratory Reserve volume | $(iii)$ $500-550\,mL$ |
| $(d)$ Residual volume | $(iv)$ $1000-1100\,mL$ |
MediumNEET 2018
View SolutionDead space air is
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