What type of cells is the gallbladder made of?

What type of cells is the gallbladder made of?

The gallbladder is made up of layers of tissue: mucosa – the inner layer of epithelial cells (epithelium) and lamina propria (loose connective tissue) a muscular layer – a layer of smooth muscle. perimuscular layer – connective tissue that covers the muscular layer.

What are gallbladder cells called?

The mucosa, the inner portion of the gallbladder wall, consists of a lining of a single layer of columnar cells, with cells possessing small hair-like attachments called microvilli. This sits on a thin layer of connective tissue, the lamina propria.

What is the anatomy of the gallbladder?

The gallbladder is a pear-shaped, hollow structure located under the liver and on the right side of the abdomen. Its primary function is to store and concentrate bile, a yellow-brown digestive enzyme produced by the liver. The gallbladder is part of the biliary tract.

What do gallbladder cells produce?

Storage. The gallbladder acts as a storage vessel for bile produced by the liver. Bile is produced by hepatocytes cells in the liver and passes through the bile ducts to the cystic duct. From the cystic duct, bile is pushed into the gallbladder by peristalsis (muscle contractions that occur in orderly waves).

What activates the gallbladder?

Contraction of the muscle wall in the gallbladder is stimulated by the vagus nerve of the parasympathetic system and by the hormone cholecystokinin, which is produced in the upper portions of the intestine. The contractions result in the discharge of bile through the bile duct into the duodenum of the small intestine.

Where does the bile go after it leaves the gallbladder?

Once your gallbladder is removed, you can still break down fats in your small intestine. The bile simply flows directly from your liver to your duodenum, rather than passing through your gallbladder first.

Does coffee affect gallbladder?

Coffee consumption and gallstones There is some evidence that coffee triggers the contraction of the gallbladder. It appears likely that caffeine is largely responsible for the effect of coffee, since consumption of decaffeinated coffee is not linked to a reduced risk of developing gallbladder disease in all studies.

Where does the bile come from in the gallbladder?

It concentrates and stores bile, receiving dilute watery bile from the common hepatic duct and emptying thick, concentrated, variably mucoid bile into the common bile duct. Bile is transported in and out of the gallbladder through a short duct, the cystic duct.

How are gallbladder cells adapted to their function?

Gallbladder epithelial cells are adapted for salt and water absorption, and have abundant basal and apical mitochondria, and Na + and K + transport ATPases in their lateral walls. Na + and Cl – ions are actively pumped out of the cell cytoplasm into the lateral intercellular space to produce an osmotic gradient between it and the gallbladder lumen.

How is the gallbladder connected to the pancreas?

The gallbladder is connected via the cystic duct to the common hepatic duct, forming the common bile duct (CBD) that drains into the duodenum through the head of the pancreas. In most situations, the hepatic artery lies between the CBD and the more posteriorly located portal vein.

What makes up the outer layer of the gallbladder?

The outer layer of the fundus of gallbladder, and the surfaces not in contact with the liver, are covered by a thick serosa, which is exposed to the peritoneum. The serosa contains blood vessels and lymphatics. The surfaces in contact with the liver are covered in connective tissue.