Figure 3From: Predominant constitutive CFTR conductance in small airwaysEffect of luminal Cl- substitution in a perfused small bronchiole on TEP. The substitution of Gluconate, an impermeant anion, for permeable Cl- in the lumen markedly hyperpolarized the TEP. This response indicates a predominant Cl- conductance that appears to be constitutively active.Back to article page