Figure 6
Ussing chamber. Ex-vivo Ca2+ absorption in different intestinal segments (duodenum = DD, cecum = CC, colon descendens dorsale = CAD, colon descendens = CD) was measured by the Ussing chamber technique. Positive flux rates (absorption) from the mucosal to the serosal sides were measured in the duodenum, while in the remaining segments (CC, CAD, CD), the negative flux rates (secretion) were determined.