Intro to Liver and Gallbladder Function Flashcards
What are the 6 main functions of the liver?
What is the function of the gallbladder?
What is meant by saying that the liver has a dual circulation occurring?
The GI system is […] resistance
Low
All blood that enters the GI tract and picks up nutrients from GI absorption drains into the […]
Portal vein
What happens to the flow of blood into the liver after a meal?
What is the first pass effect of the liver?
- Utilize nutrients –> liver carries out a lot of functions, so its very useful for it to have first dibs on nutrients
- Detoxify –> important to have any potential toxins entering body go first to a place where they could be detoxified before reaching heart and brain
- Modify drugs –> important to have drugs modified here so they can exert effects in systemic system without damage
Sinusoid = area where hepatic artery blood and portal vein blood mix before draining into central vein
Let’s consider a single layer of hepatocytes sandwiched between two sinusoids (see image). Describe the general possibilities for what enters these hepatocytes and what exits and how.
What is the role of liver endothelial cells?
Fenestrated border to allow flow of material from blood to space of disse
What is the role of liver stellate (ito) cells?
Vitamin A and lipid storage, release cytokines, involved in immune/inflammation/fibrosis
What is the role of liver Kupfer cells?
Macrophages (APCs) innate immune response, phagocytes for bacteria