Hormonal Harmony: A Visual Guide to Understanding Gastrointestinal Hormones
Delve into the world of gastrointestinal hormones with our detailed mind map. Explore the production, functions, and clinical significance of key hormones like gastrin, ghrelin, secretin, and cholecystokinin.
Understand how these hormones regulate digestion, appetite, and pancreatic function.
Here is a detailed comprehensive mind map of the physiology topic “Gastrointestinal Hormones”:
Central Idea: Gastrointestinal Hormones
Main Branches:
- Types of Gastrointestinal Hormones
- Functions of Gastrointestinal Hormones
- Regulation of Gastrointestinal Hormones
Sub-Branches:
1. Types of Gastrointestinal Hormones
- Gastrin
- Produced by: G cells in the antrum of the stomach
- Stimulates: Gastric acid secretion, gastric motility
- Cholecystokinin (CCK)
- Produced by: I cells in the duodenum and jejunum
- Stimulates: Gallbladder contraction, pancreatic enzyme secretion
- Secretin
- Produced by: S cells in the duodenum
- Stimulates: Pancreatic bicarbonate secretion, gastric acid inhibition
- Motilin
- Produced by: M cells in the small intestine
- Stimulates: Gastric motility, intestinal motility
- Gastric Inhibitory Peptide (GIP)
- Produced by: K cells in the duodenum and jejunum
- Stimulates: Insulin secretion, gastric acid inhibition
- Vasoactive Intestinal Peptide (VIP)
- Produced by: VIP-producing cells in the small intestine
- Stimulates: Smooth muscle relaxation, secretion of water and electrolytes
- Somatostatin
- Produced by: D cells in the pancreas and gastrointestinal tract
- Inhibits: Gastric acid secretion, pancreatic hormone secretion
2. Functions of Gastrointestinal Hormones
- Regulation of Gastric Acid Secretion
- Gastrin: stimulates gastric acid secretion
- Secretin: inhibits gastric acid secretion
- Somatostatin: inhibits gastric acid secretion
- Regulation of Pancreatic Secretion
- CCK: stimulates pancreatic enzyme secretion
- Secretin: stimulates pancreatic bicarbonate secretion
- Somatostatin: inhibits pancreatic hormone secretion
- Regulation of Gut Motility
- Motilin: stimulates gastric motility and intestinal motility
- Gastrin: stimulates gastric motility
- CCK: stimulates intestinal motility
- Regulation of Blood Sugar
- GIP: stimulates insulin secretion
- Somatostatin: inhibits insulin secretion
3. Regulation of Gastrointestinal Hormones
- Neural Regulation
- Vagus nerve: stimulates gastrin and CCK secretion
- Sympathetic nerve: inhibits gastrin and CCK secretion
- Hormonal Regulation
- Gastrin: stimulates CCK secretion
- CCK: stimulates secretin secretion
- Somatostatin: inhibits gastrin and CCK secretion
- Local Regulation
- pH: regulates gastrin and secretin secretion
- Food composition: regulates CCK and GIP secretion
This mind map provides a comprehensive overview of the gastrointestinal hormones, including their types, functions, and regulation.
It can be used as a study aid or a teaching tool to help learners visualize and organize the complex concepts related to this topic.
