Abstract
Summary
Secretion of sodium, chloride, and water was most rapid in the proximal small intestine and showed a progressive distal decline when osmotic and concentration gradients were imposed by intraluminal 300 mM mannitol. Like secretion, absorption of sodium, chloride, and water from 152 mM sodium chloride solution was highest proximally and showed a progressive distal decrease. The pattern of transmucosal potential differences showed no correlation with absorption and secretion rates.
Get full access to this article
View all access options for this article.