Biliary tracts are the ducts that carry bile from the liver to the small intestine. The spelling of biliary tracts is straightforward when using the International Phonetic Alphabet (IPA) transcription. It is pronounced as /ˈbɪli.əɹi træks/. The first syllable "bil" is pronounced as "bill" with a short "i" sound, and the second syllable "iary" sounds like "ee-air-ee". The word "tract" is pronounced with a short "a" sound, similar to the word "cat".
The biliary tracts refer to a system of interconnected channels and ducts found in the human body, specifically within the liver and gallbladder. These structures are responsible for the production, storage, and transportation of bile, a fluid essential for the digestion and absorption of dietary fats.
The biliary tracts consist of three main components: the small bile ducts, the common hepatic duct, and the common bile duct. The small bile ducts, also known as intrahepatic ducts, are located within the liver and collect bile from the liver cells. These small ducts gradually merge together to form larger ducts.
The common hepatic duct emerges from the liver and carries bile away from it. This duct joins with the cystic duct, which connects to the gallbladder, to form the common bile duct. The common bile duct delivers bile to the small intestine, specifically the duodenum, where it aids in the breakdown and absorption of fats.
The biliary tracts play a crucial role in maintaining a healthy digestive system. Bile, produced by the liver and stored in the gallbladder, not only helps digest fats but also assists in the absorption of fat-soluble vitamins. Additionally, the biliary tracts contribute to the excretion of waste products, such as bilirubin, a byproduct of red blood cell metabolism.
Disorders or diseases affecting the biliary tracts can cause various symptoms, including jaundice (yellowing of the skin and eyes), abdominal pain, digestive problems, and malabsorption. Treatment options for biliary tract disorders may involve medication, dietary changes, or surgical intervention.
The word "biliary" is derived from the Latin word "bilis", which means "bile". Bile is a greenish-yellow fluid produced by the liver that aids in the digestion and absorption of fats. The term "tract" refers to a passage or channel. Therefore, the term "biliary tracts" refers to the passages or channels where bile flows, including the gallbladder, bile ducts, and associated structures.