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HUN4446 test 2
Liver Sturcture
13
Health Care
Undergraduate 4
03/18/2009

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Term
General Liver structure
Definition
2 main lobes (essential 4 life), made of hepatocytes, bile canaliculi, & sinusoids
Term
Liver Blood Supply
Definition
portal vein/hepatic artery -> sinusoids -> central hepatic vein -> inferior vena cava
Term
Liver functions
Definition
blood volume regulation, detoxification, bile production, metabolic functions
Term
Liver metabolic functions (CHO)
Definition
glycogen synthesis & storage, glycogenolysis, monosaccharide conversion, conversion of amino acid residues
Term
Liver metabolic functions (fat)
Definition
formation of lipoproteins, fatty acid oxidation, cholesterol & phospholipid synthesis, bile salt formation, conversion of CHO & protein to fat
Term
Liver metabolic functions (protein)
Definition
deamination of amino acids, synthesis of plasma proteins, syntehsis of prothrombin/clotting factors, urea formation, transamination
Term
Liver metabolic functions (other)
Definition
storage of vitamins/minerals, blood coagulation
Term
Liver Function Tests
Definition
Standard Panel: AST(SGOT), ALT(SGPT), alkaline phosphatase, gamma glutamyl transpeptidase(GGT), albumin, total bilirubin
Other: prothrombin time, serum calcium, serum ammonia
Term
Bile duct sequence
Definition
hepatic duct+cystic duct=common bile duct
common bile duct+pancreatic duct=ampulla -> duodenal papilla & sphincter of Oddi
Term
Bile
Definition
aqueous emulsifying agent that helps in absorption of fatty acids monoglcerides, cholesterol, and lipids by forming micelles
Term
Hypocalcemia contributing factors
Definition
low serum albumin, impaired vit D metabolism, decreased bile salts -> malabsorption of fat & fat-soluble vits -> "soap" formation
Term
Corrected serum calcium
Definition
[(4-acutal serum albumin)0.8]+actual serum calcium = corrected serum calcium (normal range 8.5-10.8mg/dL)
Term
Typical liver disease serum chemistry profile
Definition
Increased: ALT, AST, alkaline phosphatase, GGT, ammonia, total bilirubin, prothrombin time
Decreased: albumin, calcium, prothrombin synthesis
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