Total lung capacity depends upon:-
TLC is the maximum volume to which the lungs can be expanded with the greatest possible effo. TLC = VC + RV (VC = IRV + TV + ERV) The expansion of lungs depends on its compliance Def: the extent to which lungs will expand for each unit increase in Transpulmonary pressure is k/a lung compliance.
Size of airway
Closing volume
Lung compliance
Residual volume
Respiratory System Pa 1