Question

Based on the functions discussed about CCK, which of the following would be associated with an increased release of CCK?

1) parasympathetic drive
2) increased activity of the pancreatic acinar cells
3) two choices are correct
4) three choices are correct
5) a meal high in fat content reaching the small intestine

Answer 1

Increased release of CCK is associated with a meal high in fat content reaching the small intestine and parasympathetic drive. CCK stimulates the release of pancreatic enzymes, while parasympathetic drive indirectly promotes CCK activity.

Step-by-step explanation:

Based on the functions of cholecystokinin (CCK), increased release of CCK would be associated with a meal high in fat content reaching the small intestine. The presence of proteins and fats in the duodenum is a potent stimulator of CCK secretion. This hormone then stimulates the acinar cells of the pancreas to secrete enzyme-rich pancreatic juice and supports the action of secretin.

Additionally, parasympathetic drive, via vagal stimulation, also promotes the release of pancreatic secretions, which may indirectly suggest increased CCK activity. Therefore, two scenarios associated with an increased release of CCK are a meal high in fat content reaching the small intestine (5) and parasympathetic drive (1).