In physiology,<unk>  (ICD) is the diffusion of different gases into and out of tissues while under a constant ambient pressure, after a change of gas composition, and the physiological effects of this phenomenon. The term inert gas<unk>  is sometimes used as a synonym, but can also be applied to situations where the ambient pressure changes. It has relevance in mixed gas diving and anesthesiology.
Isobaric counterdiffusion
Bioconcentration
Solvent drag
Countercurrent exchange
Vascular recruitment
Haldane effect
Spin–lattice relaxation
Collateralization