liver Flashcards
(18 cards)
function of portal vein
brings blood from lungs to gut (70%)
hepatic artery
brings arterial blood from the aorta (20-30%,nutritional)
hepatic vein
takes blood to the heart
lymph vessels
drain lymph
hepatic ducts
transport bile to the gut
all materials absorbed via the intestine reach the liver via the portal vein , except
complex lipids (chylomicrons)- absorbed via lymphatics
liver lobules are well demonstrated in what species
pig and camel
____ receive blood from both the portal vein and hepatic artery and drain into central vein
sinusoids
wide lumen , fenestrated endothelial cells and a discontinuous basal lamina
sinusoids, blood contents can freely move back and forth between sinusoids
space surrounding sinusoids
space of Disse (site for exchange of materials between the blood stream and hepatocytes )
besides endothelial cells , sinusoids are lined by
kupffer cells
function of kupffer cells
remove foreign particles and old RBC
hepatic functions: exocrine and endocrine
exocrine : production and release of bile
endocrine : production and release of several plasma proteins
hepatic functions : metabolic, gluconeogenesis and detoxification
metabolic storage of glycogen and lipids
Synthesis of glucose from fats and proteins
detoxification of drugs, chemicals, and toxins by enzymes
what lobule can a central vein in center, hexagonal, and portal triads at each corner
classical lobule
what lobule is triangular, contains 3 adjacent classical lobules with a central vein at each corner of try triangle
portal lobule
diamond shaped connecting adjacent lobules
hepatic acinus of Rappaport
which lobule would receive more oxygen and nutrient rich blood because the hepatocytes are in the periphery than those near the central vein
classical lobule
