Gallbladder Revealed: A Comprehensive Guide Through the Gallbladder Mindmap for Digestive Insights
Here is a detailed comprehensive mind map of the physiology topic “gallbladder”:
Central Idea: Gallbladder
Main Branches:
- Structure
- Functions
- Regulation
- Clinical Correlations
Sub-Branches:
1. Structure
- Location
- Right upper quadrant of abdomen
- Underneath the liver
- Shape
- Pear-shaped
- Capacity: 30-50 mL
- Wall Layers
- Mucosa (innermost layer)
- Muscularis (middle layer)
- Serosa (outermost layer)
- Blood Supply
- Cystic artery (branch of hepatic artery)
- Cystic vein (drains into portal vein)
2. Functions
- Bile Storage
- Stores bile produced by the liver
- Concentrates bile by absorbing water and electrolytes
- Bile Release
- Releases bile into the cystic duct
- Regulated by cholecystokinin (CCK) and vagus nerve
- Gallbladder Contraction
- Contracts to release bile into the small intestine
- Aids in fat digestion and absorption
3. Regulation
- Hormonal Regulation
- Cholecystokinin (CCK): stimulates gallbladder contraction
- Secretin: stimulates bile secretion from the liver
- Nervous Regulation
- Vagus nerve: stimulates gallbladder contraction
- Sympathetic nervous system: inhibits gallbladder contraction
- Local Regulation
- Stretch receptors: stimulate gallbladder contraction in response to increased pressure
4. Clinical Correlations
- Gallstones
- Cholelithiasis: formation of gallstones in the gallbladder
- Symptoms: abdominal pain, nausea, vomiting
- Cholecystitis
- Inflammation of the gallbladder
- Symptoms: abdominal pain, fever, nausea, vomiting
- Gallbladder Cancer
- Adenocarcinoma: most common type of gallbladder cancer
- Symptoms: abdominal pain, jaundice, weight loss
- Gallbladder Removal
- Cholecystectomy: surgical removal of the gallbladder
- Indications: gallstones, cholecystitis, gallbladder cancer
This mind map provides a comprehensive overview of the physiology of the gallbladder, covering its structure, functions, regulation, and clinical correlations.
