Question
What is the purpose of CCK stimulates decreased liver secretions of digestive enzymes concentrate and eliminate waste materials trigger a reflex that moves the feces out of the body by peristalsis inhibition of stomach contractions
Solution
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(186 Votes)
Alden
Expert ยท Tutor for 3 years
Answer
The primary purpose of Cholecystokinin (CCK) is to **stimulate the gallbladder to contract and release bile into the small intestine**. It also stimulates the pancreas to release digestive enzymes. Therefore, the option closest to correct is "stimulates decreased liver secretions of digestive enzymes," although it's phrased negatively and a bit misleading. CCK doesn't directly *decrease* liver secretions, but its actions indirectly reduce the *need* for copious liver secretions by enhancing the efficiency of existing enzymes and bile.The other options are incorrect:* **Concentrate and eliminate waste materials:** This is the primary function of the large intestine (colon).* **Trigger a reflex that moves the feces out of the body by peristalsis:** This describes the defecation reflex, which is not directly controlled by CCK.* **Inhibition of stomach contractions:** CCK does slow gastric emptying, but this is a secondary function, not its primary purpose. This slowing allows more time for the digestive processes in the duodenum, aided by the bile and pancreatic enzymes released due to CCK's primary action.