. Author manuscript; available in PMC: 2009 Apr 30.

Published in final edited form as: Respir Physiol Neurobiol. 2008 Jan 31;161(2):142–159. doi: 10.1016/j.resp.2008.01.004

Table 1.

Definitions of symbols.

Variables	Subscripts	Definition
C		Concentration, ml/ml
P		Partial pressure, Torr
Q		Blood flow, ml/min
D		Blood to tissue conductance, ml/min/Torr
V		Volume, ml
HbO₂		Oxyhemoglobin concentration, ml/ml
HbCO		Carboxyhemoglobin concentration, ml/ml
MbCO		Oxymyoglobin concentation,ml/ml
MbO₂		Carboxymyoglobin concentration, ml/ml
	A	alveolar compartment
	m (m1, m2)	muscle (muscle subcompartments 1 and 2)
	ot	other tissue compartment
	ar	arterial blood compartment
	ec	end-capillary blood compartment
	t (tm1, tm2)	muscle tissue compartment (subcompartments 1 and 2)
	bm (bm1, bm2, bm3)	muscle blood compartment (subcompartments 1, 2, and 3)
	bot	other tissue blood compartment
	bmv	mixed venous blood compartment
	s	pulmonary shunt compartment
	vm	muscle venous blood compartment
	i	inspired
	mxv	mixed venous