NUR 406 Liver
- liver
Largest gland in body
Attached to diaphragm with right & left triangular ligaments Provides roof over right kidney, stomach, pancreas gallbladder and intestines
- falsiform
ligament attaches liver to abdominal wall and divides right & left lobes of liver
This attachment is why the tip of the liver can be "caught" in physical assessment when a patient takes a deep breath
- right lobe
broken down into caudate (posterior) and quadrate (inferior) lobes Transverse fissure (porta)runs between these two lobes and contains portal vein, hepatic artery & nerves TO liver & hepatic vein, hepatic duct and lymphatics FROM liver
All pass in lesser omentum (fold of peritoneum) to or from lesser curvature of stomach and liver
- portal vein
large vein bringing blood to the liver from the intestines main supply of oxygen to the liver
- peritoneum
protects the internal organs
- Glisson's capsule 1 / 2
Liver surrounded by tough fibroelastic capsule
Helps form framework for branches of portal vein, hepatic artery and bile ducts Contributes to why liver becomes congested and cannot expand in cirrhosis keeps it from expanding too much
- bare area
Small area on posterior surface of liver where liver attaches directly to diaphragm—rest of liver covered by visceral peritoneum
- peritoneum
Greater omentum (front of abdomen) "abdominal policeman"
Lesser omentum (attaches liver to stomach) Mesentery (back of abdomen)
- hepatocytes
Arranged radially around central vein for drainage and entire unit of hepatocytes and central vein is called LOBULE (approximately 1 million lobules in human liver)
Production of bile->excreted into canaliculi->transported into larger ducts->travels to gallbladder for storage OR travels down common bile duct (CBD ) >d uj odenum at ampulla of vater
- common bile duct
is formed when cystic duct from GB and Hepatic duct from liver join together and empties into the ampulla of Vater into duodenum
- RBC breakdown
80-85% of bilirubin produced by in liver and spleen
- formation of bile
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