gallbladder

Examples of gallbladder in the following topics:

• Anatomy of the Gallbladder

  • The gallbladder, a hollow organ that stores bile, is located under the liver.
  • The gallbladder is a hollow organ that sits beneath the liver and stores bile made in the liver.
  • At the neck of the gallbladder is a mucosal fold where gallstones commonly get stuck.
  • The serosa is a smooth membrane that is the outer covering of the gallbladder.
  • An illustration of the gallbladder from Gray's Anatomy with each section labeled.

• The Gallbladder

  • The gallbladder is a pear-shaped organ that stores about 50 ml of the bile produced by the liver until the body needs it for digestion.
  • The gallbladder has a muscular wall that contracts in response to cholecystokinin, a peptide hormone that is synthesized by the small intestine.
  • When food containing fat enters the digestive tract, the secretion of cholecystokinin (CCK) is stimulated, and the gallbladder releases the bile into the small intestine.
  • After being stored in the gallbladder, the bile becomes more concentrated to increase its potency and intensify its effect in fats.

• Histology of the Gallbladder

• Gallstones

  • A gallstone is a crystalline concretion formed within the gallbladder by accretion of bile components.
  • The gallbladder may contain a single large stone or many smaller ones.
  • A lack of melatonin can significantly contribute to gallbladder stones, as melatonin inhibits cholesterol secretion from the gallbladder, enhances the conversion of cholesterol to bile, and is an antioxidant capable of reducing oxidative stress to the gallbladder.
  • The lack of a gallbladder may have no negative consequences in many people.
  • This gallbladder has been opened to show numerous gallstones.

• Associated Organs

  • The pancreas, liver, and gallbladder are the essential associated organs of the digestive system.
  • The pancreas, liver, and gallbladder are organs that are essential for digestion.
  • The cystic duct, from the gallbladder, joins with the common hepatic duct to form the common bile duct.
  • The gallbladder is connected to the main bile duct through the cystic duct, which in turn connects to the duodenum.
  • Differentiate among the roles played by the pancreas, liver, and gallbladder in digestion

• The Liver

  • Bile is formed in the liver, and it is stored in the gallbladder or released directly into the small intestine.
  • After being stored in the gallbladder, the bile becomes more concentrated than when it left the liver; this increases its potency and intensifies its effect in digesting fats.

• Abdominopelvic Regions

  • The right upper quadrant contains the right portion of the liver, the gallbladder, right kidney, a small portion of the stomach, the duodenum, the head of the pancreas, portions of the ascending and transverse colon, and parts of small intestine.
  • Pain in this region is associated with infection and inflammation in the gallbladder and liver or peptic ulcers in the stomach.
  • Most organs are part of multiple regions, including the gallbladder, duodenum, stomach, kidneys, spleen, small intestine and colon.
  • The right hypochondriac region contains the right portion of the liver, the gallbladder, the right kidney, and parts of the small intestine.
  • The right lumbar region consists of the gallbladder, the left kidney, part of the liver, and the ascending colon.

• Histology of the Liver

  • Describe the layers of the gallbladder and the histology of the liver

• Effects of Smoking

  • There is some evidence suggesting a small increased risk of myeloid leukemia, squamous cell sinonasal cancer, liver cancer, colorectal cancer, cancers of the gallbladder, the adrenal gland, the small intestine, and various childhood cancers.

• Aging and the Digestive System

  • Other pathologies that increase in occurrence with age include acute pancreatitis, jaundice, and gallbladder problems.