Herbs for the Liver Flashcards
(152 cards)
Where is the liver located?
located in the upper right quadrant of the abdomen, just below the diaphragm and above the stomach and intestines
What is the function of the Hepatic Artery?
To supply the liver with oxygenated blood
What is the function of the Hepatic Vein?
To remove deoxygentated blood from the liver
What is the function of the Hepatic Portal Vein?
It brings blood from the digestive tract to the liver, where nutrients are metabolized and toxins are removed for excretion. This means that everything gets filtered by the liver before it enters the general circulation
How many lobes does the liver have?
The liver is comprised of two lobes, right and left, which are each divided into many smaller functional units, called lobules.
What are hepatocytes?
hepatocytes—cells that perform most of the metabolic and digestive functions of the liver.
How long does it take for the liver to regenerate into a fully functioning organ when up to 70% is removed?
Hepatocytes have a remarkable ability to regenerate; even if 70% of the liver is damaged or removed, it can still regenerate into a fully functioning organ within two weeks (McCance, 2010).
What is the role of the Kupferr cells that line the sinusoids withing the liver?
Each lobule contains a complex vascular network; blood flows between the hepatic veins and arteries through capillary-like sinusoids, which have a highly permeable membrane that allows for maximum exchange of nutrients between blood plasma and hepatocytes. The sinusoids are lined with Kupffer cells, a type of macrophage that serves to protect the liver (and the rest of the body!) from pathogens arriving from the digestive tract via the hepatic portal vein.
Where is the location of the gallbladder?
The gallbladder is a very small organ wedged between the liver and the duodenum (the first section of the small intestine).
What are the 5 main funcitons of the liver?
Fat digestion and bile secretion
Nutrient metabolism and blood sugar regulation
Manufacture of blood plasma proteins
Detoxification of endogenous and exogenous substances
Storage of vitamins and minerals
How many functions does the liver have?
in fact, the liver has more than five hundred distinct functions (Johns Hopkins Medicine, n.d.),
The liver mainly functions as part of the digestive system, What other two systems does the liver function within?
Endocrine and circulatory system.
What does bile consist out of?
Bile salts - synthesized from cholesterol and required for the emulsification and absorption of dietary fats
Cholesterol and other lipids
Bilirubin - an alkaline, yellow-green fluid, produced from the breakdown of hemoglobin (red blood cells) in the liver and bone marrow
Electrolytes
Water
Which organs produce bile?
Liver and gallbladder
What gives feces its typical brown color and what is the relationship between the color of stool and liver and gallbladder function?
The presence of bilirubin is what gives feces its typical brown color, light or pale colored stools can sometimes indicate insufficient bile production, linked to gallbladder or liver dysfunction.
Which component of bile is recycled back into the liver through enterohepatic circulation?
most bile salts are eventually recycled back into the liver through enterohepatic circulation—that is, through the hepatic portal vein—and may travel between the gut lumen and the liver 10 to 12 times each day (Siddiqui, 2018).
What is the function of bile?
Digestion:
It emulsifies fats into smaller particles for absorption
Elimination:
Many waste products, including excess cholesterol, metabolic byproducts, and some toxic compounds, are packaged with bilirubin and secreted into the bile so that they can be eliminated from the body through the colon.
Explain the production and storage of bile?
Bile is secreted by the hepatocytes into narrow channels called canaliculi that flow into small bile ducts, which eventually meet up and empty into the common bile duct. About 25% of the bile produced in the liver travels directly into the duodenum; the remaining 75% moves into the gallbladder, where it is concentrated and stored until needed for digestion (Siddiqui, 2018).
What triggers the excretion of bile?
Consumption of fats and some proteins triggers the secretion of the digestive hormone cholecystokinin (CCK) by cells within the the duodenum; in response, the gallbladder contracts and releases bile
What is the name of the sphincter in the duodenum through which bile is released?
sphincter of Oddi
How many times a day are bile salts recycled back into the liver?
10 to 12 times each day
What are the concequences of chronicly high blood glucose levels?
When blood glucose is too high, we may notice fewer immediate warning signs, but left unchecked, high blood sugar can progress to insulin resistance and diabetes, with long term effects that include irreparable damage to the blood vessels, kidneys, eyes, and nerves.
What are the consequences of low blood suger
When blood glucose is too low, we may start to feel fatigue, dizziness, confusion, and muscle weakness—not to mention hungry, angry, anxious or weepy. Eventually we might lose consciousness
Through which pathways are nutrients transported to the liver?
Hepatic portal vein or the lymphatic system.