Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

5 Questions

1 Views

Actions of Cholecystokinin (CCK)

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following actions is NOT performed by CCK?

Potentiates pancreatic HCO$_3^-$ secretion

Inhibits gastric emptying

Stimulates contraction of the gallbladder

Stimulates growth of the liver (correct)

Triglycerides stimulate the release of CCK.

False

What types of stimuli trigger the release of CCK?

Small peptides, amino acids, fatty acids, and monoglycerides.

CCK inhibits gastric emptying to allow more time for intestinal digestion and ___.

<p>absorption</p> Signup and view all the answers

Match the following actions of CCK with their descriptions:

<p>Stimulates pancreatic enzyme secretion = Increases digestive enzyme availability Relaxes the sphincter of Oddi = Allows bile secretion into the intestine Stimulates growth of the exocrine pancreas = Encourages pancreatic tissue development Inhibits gastric emptying = Delays food transit to the intestine</p> Signup and view all the answers

Study Notes

Actions of CCK

Contracts the gallbladder while relaxing the sphincter of Oddi, facilitating bile secretion into the intestinal tract.
Stimulates the secretion of pancreatic enzymes, aiding in digestion.
Enhances the effect of secretin, which stimulates bicarbonate secretion in the pancreas.
Promotes growth of the exocrine pancreas, important for digestive function.
Inhibits gastric emptying; fat-containing meals lead to increased CCK secretion, allowing more time for intestinal digestion and absorption.

Stimuli for the Release of CCK

Secreted by I cells located in the duodenal and jejunal mucosa.
Release triggered by:
- Presence of small peptides and amino acids in the intestines.
- Fatty acids and monoglycerides, essential for stimulating digestion.
Triglycerides do not stimulate CCK because they cannot penetrate intestinal cell membranes.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Explore the various actions of cholecystokinin (CCK) in the digestive system. This quiz covers its role in gallbladder contraction, pancreatic enzyme secretion, and its effects on gastric emptying. Test your understanding of how fat in meals influences CCK secretion and digestive processes.