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Flashcards in this deck (50)
  • What ligament divides the liver into two lobes?

    Falciform ligament

    anatomy liver
  • What is the functional unit of the liver?

    Lobule

    anatomy liver
  • Which blood vessel supplies oxygen-rich blood to the liver?

    Hepatic artery

    anatomy circulation
  • What vessel supplies nutrient-rich blood from the GI tract to the liver?

    Portal vein

    anatomy circulation
  • Which liver cells perform major liver functions?

    Hepatocytes

    cell_biology liver
  • What macrophages are found in the liver?

    Kupffer cells

    anatomy immunology
  • What enzyme converts heme to biliverdin?

    Heme oxidase

    biochemistry enzymes
  • What converts biliverdin to unconjugated bilirubin?

    Biliverdin reductase

    biochemistry enzymes
  • Which protein does unconjugated bilirubin bind to in the blood?

    Albumin

    biochemistry proteins
  • What enzyme converts unconjugated bilirubin to conjugated bilirubin?

    UDPGT (uridine diphosphate glucoronosyl transferase)

    biochemistry enzymes
  • What is the water-soluble form of bilirubin?

    Conjugated bilirubin

    biochemistry bilirubin
  • What substance is conjugated bilirubin converted to in the intestine?

    Urobilinogen

    biochemistry bilirubin
  • What is the brown pigment found in feces?

    Stercobilin

    biochemistry pigments
  • What is another term for unconjugated bilirubin?

    B1

    biochemistry bilirubin
  • What is another term for conjugated bilirubin?

    B2

    biochemistry bilirubin
  • What is the process of storing glucose as glycogen?

    Glycogenesis

    biochemistry metabolism
  • What is the breakdown of glycogen to glucose called?

    Glycogenolysis

    biochemistry metabolism
  • What is the synthesis of glucose from non-sugar substances?

    Gluconeogenesis

    biochemistry metabolism
  • What condition causes yellow discoloration due to elevated bilirubin?

    Jaundice

    pathology bilirubin
  • What is pre-hepatic jaundice caused by?

    Problems prior to liver metabolism

    pathology jaundice
  • What causes hepatic jaundice?

    Liver function impairment

    pathology jaundice
  • What causes post-hepatic jaundice?

    Biliary obstruction

    pathology jaundice
  • What genetic syndrome results in impaired bilirubin uptake in hepatocytes?

    Gilbert's syndrome

    genetics pathology
  • What syndrome involves impaired conjugation due to absence of UDPGT?

    Crigler-Najjar syndrome

    genetics pathology
  • What syndrome is characterized by failure to excrete conjugated bilirubin into bile?

    Dubin-Johnson syndrome

    genetics pathology
  • What condition in infants is caused by the absence of UDPGT?

    Physiologic jaundice of the newborn

    pediatrics pathology
  • What severe neurological condition is caused by B1 build-up in newborns?

    Kernicterus

    neurology pathology
  • What condition involves scar tissue replacing healthy liver tissue?

    Cirrhosis

    pathology liver
  • What is the most common cause of cirrhosis?

    Chronic alcoholism

    pathology liver
  • What is the most common malignant tumor in the liver?

    Hepatocellular carcinoma (HCC)

    oncology liver
  • What does the albumin test measure?

    Albumin/Total Protein

    liver tests
  • What is assessed by measuring liver enzymes?

    Liver function and damage

    liver tests
  • What does Prothrombin Time assess?

    Synthesis function of the liver

    liver tests
  • What is measured for detoxification of the liver?

    Ammonia

    liver tests
  • What is the preferred specimen for bilirubin testing?

    Serum/Plasma

    liver bilirubin
  • What principle is used in bilirubin testing methods?

    Van den Berg reaction

    liver bilirubin
  • What accelerator is used in the Malloy-Evelyn method?

    50% methanol

    liver bilirubin
  • What accelerates the Jendrassik and Grof method?

    caffeine sodium benzoate or caffeine-benzoate acetate

    liver bilirubin
  • What disease is associated with children using aspirin?

    Reye's Syndrome

    health aspirin
  • What type of jaundice is also called unconjugated hyperbilirubinemia?

    Pre-hepatic Jaundice

    liver jaundice
  • The liver is capable of what?

    regenerating cells

    liver function
  • The right lobe of the liver is approximately how many times larger than the left lobe?

    6

    liver anatomy
  • Approximately how many mL of blood pass through the liver per minute?

    1,500

    liver blood_flow
  • The liver is the storage site for all what kinds of vitamins?

    fat-soluble and water-soluble

    liver vitamins
  • Noticeable jaundice occurs at bilirubin levels of?

    3.0-5.0 mg/dL

    liver bilirubin
  • In Gilbert's syndrome, which gene has a mutation?

    UGT1A1

    genetics liver
  • What is deficient in Dubin-Johnson syndrome?

    canalicular multidrug resistance/multispecific organic anionic transporter (MDR2/cMOAT)

    genetics liver
  • Alcohol-induced liver injury has how many stages?

    3

    liver injury
  • What indicates clay-colored stool?

    B2 (conjugated bilirubin) does not reach the intestine

    liver stools
  • Metastatic tumors in the liver are how common compared to primary tumors?

    more common

    cancer liver