Intravenous injection of secretin will cause the following changes in the pancreatic juice secretion except
|A||Secretion of copious volume of pancreatic secretion|
|B||Bicarbonate content increased markedly|
|C||Chloride content decreases markedly|
|D||Amylase content increases markedly|
|E||Potassium content does not change much|
As the volume of pancreatic secretion increases, its Cl- concentration falls and its HC03 concentration
increases. Why? This is because although HC03 is secreted in the small ducts, it is reabsorbed in the large ducts in
exchange for Cl-. The magnitude of the exchange is inversely proportionate to the rate of flow.
The enzyme content in the pancreatic juice decreases with secretin.