Fluid secretion by lung cells is due to _______ alveolar cells.

Question

Quizplus · Accepted Answer

Fluid secretion by lung cells is predominantly due to the active transport of Cl^- out of alveolar cells. This process is mainly driven by the Na+/K+/2Cl- co-transporter and is regulated by various ion channels and transporters, such as CFTR (cystic fibrosis transmembrane conductance regulator) and ENaC (epithelial Na+ channel). The net result of this chloride secretion is the formation of a hypotonic fluid (i.e., lower in salt concentration than plasma) that lines the respiratory airways and helps maintain their function.

Fluid Secretion by Lung Cells Is Due to _______ Alveolar