Control of the GI tract | Gastrointestinal system physiology | NCLEX-RN | Khan Academy
khanacademymedicine・2 minutes read
The digestive system can function independently of the brain and spinal cord through various reflexes and hormone releases, such as the gastrocolic reflex, gastrin, secretin, and cholecystokinin. Hormones like insulin and glucagon also play crucial roles in regulating glucose levels in the body to maintain proper balance.
Insights
- The enteric nervous system within the digestive system can function independently, controlling processes like the gastrocolic reflex, which helps move food through the colon without involving the brain or spinal cord.
- Hormones like gastrin, secretin, cholecystokinin, insulin, and glucagon play crucial roles in regulating digestion and maintaining glucose levels in response to specific stimuli, ensuring the efficient breakdown and absorption of nutrients while keeping blood glucose levels stable.
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Recent questions
What stimulates the release of gastrin?
Food in the stomach
How does the colon respond to food in the stomach?
Pushes existing food further down
What triggers the release of secretin?
Acidic chyme in the duodenum
What is the function of cholecystokinin?
Stimulates release of pancreatic enzymes
How does the body regulate glucose levels?
Insulin and glucagon release
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