C4.i State the normal values of lung volumes and capacities.
C4.ii Define the functional residual capacity of the lung and:
C4.ii.a describe its clinical significance,
C4.ii.b describe the factors that affect it,
C4.ii.c explain how it is measured.
C4.iii Define the closing capacity of the lung and:
C4.iii.a describe the clinical significance,
C4.iii.b describe the factors that affect it,
C4.iii.c explain how it is measured.