Lecture 1 liver Flashcards
which quadrant is the liver situated?
In the upper right portion of the abdominal cavity
What are the four anatomic lobes of the liver
Right (the largest lobe), left, quadrate and caudate lobes
What divides the four lobes of the liver
Fissures (fossae) i.e. ligaments
What 5 ligaments connect the liver to the diaphragm and abdominal walls
the membranous falciform
Coronary
Right and left triangular ligaments
And the fibrous round ligament
What ligament separates the right and left lobes of the liver
The membranous falciform
True or false: the liver can self regenerate
True, and the remaining parts go back to their original size and shape
What two things supply the liver with blood
The portal vein and the hepatic artery
What blood does the hepatic artery carry and to where
It carries well-oxygenated arterial blood to the liver
What blood does the portal vein of the liver carry and to where
oxygen-poor and nutrient-rich blood from the intestines and spleen to the liver
What is a hepatic lobule
Lobules are a functional unit of the liver, consisting of a portal triad at the lobule corners, one-cell-thick plate-like layers of hepatocytes and a central vein. The hepatocytes radiate from the central vein to the edge of the lobule.
What shape do the liver lobules take
Hexagonal prism
Define hepatocytes
Hepatocytes is the name of liver cells
What is a liver sinusoid
It is a capillary i.e. small blood vessels found between the radiating rows of hepatocytes.
What is a liver sinusoid’s importance
It receives oxygen-rich blood from the artery and nutrients of the intestines from the portal vein and diffuses them through it’s capillary walls into the liver cells.
What is the portal area of the liver
It is another functional unit/complex of the liver which consists of branches of the hepatic portal vein, hepatic artery, bile duct and nerve. It is located at the corner of each hexagonal lobule.