colloq 1 - week 9 Flashcards
secretion of cholecystokinin (cck) is stimulated by:
- mixture of polypeptides and amino acids
- gastric acid entering the duodenum
- fatty acids
- chains of 9 or more carbon atoms.
what produces cholecystokinin?
primarily through special cells called enteroendocrine cells
what is cholecystokinin and why it is produced?
It is a hormone/chemical
cck causes:
- bile release
- gastric emptying
- gallblader contraction
-cck stimulates the pancreas to secrete digestive enzymes
Explain more about the following… The secretion of pancreatic juice is regulated by the release of secretin and cholecystokinin (cck) from the duodenum.
The pancreas releases/secretes a liquid called pancreatic juice, which helps digest food. The duodenum, a part of the small intestine, tells the pancreas when to release this juice by releasing two chemicals called secretin and cholecystokinin (cck).
is cholecystokinin (cck) released into your bloodstream?
yes
alkaline also means…
basic
what is the pH of pancreatic juice
7,6-8,3
cck causes/stimulates:
pancreatic secretion, bile release, gallbladder contraction, slowing of gastric emptying and inhibition of food intake.
from where is the cck released?
from the duodenum, a part of the small intestine, in response to the presence of fatty or acidic food.
pH of small intestine
pH ranges from 7.1-7.6
tell me about the small intestine what you know
the three sectors of the small intestine
1.duodenum 2. jejunum 3. ileum
gastrointestinal tract is also could…
digestive tract
what does the small intestine consist of
-water (98.5%), - inorganic components (0.8%) - Na+, K+, Ca2+, Mg2+, HCO3 etc
organic components (0.7%), various enzymes
intestinal juice is formed by:
mixing of 3 digestive juices - pancreatic juice, intestinal juice, bile
