Chapter 3 (page 16) Flashcards
The veins draining the digestive organs spleen and pancreas empty their blood into a common
vessel called ______________ .
The hepatic portal vein
This path forms a unique blood route through the liver
called ______________ .
The hepatic portal circulation
The blood coming from the digestive organs _______ and ______ is transported to the ______ before it enters the _______________.
spleen
pancreas
liver
major systemic circulation.
The following is the route the blood takes through the hepatic portal system: Blood is drained from the digestive organs and enters into the __________. It then enters into the _______________ (capillaries of the liver) and moves into _________ then into the __________ .
hepatic portal vein
hepatic portal system
hepatic veins
inferior vena cava.
Such a venous system, veins-capillaries-veins, is called a portal system.
a portal system.
What system delivers blood filled with nutrients from the digestive organs to the liver?
The hepatic portal system
As the blood travels slowly through the _____________ (capillaries of the liver), nutrients are removed (especially glucose) and _____________ rid blood of bacteria and other foreign
material.
hepatic portal system
phagocytic cells
Liver is composed of what structural and functional units:
The liver lobules.
Liver lobules, each lobule is the size of a sesame seed. True or False?
True
Liver cells are also known as:
Hepatocytes
Each liver lobule is a ________ structure consisting of plates of liver cells
.These plates radiate__________ from the central vein, which runs within the longitudinal axis of the lobule.
six -sided
outward
A portal triad is consists of:
Hepatic artery branch
Hepatic portal vein branch
Bile duct
Located at each of the six corners of a lobule is __________ .
A portal triad
Between the plates are capillaries ( __________ ) . Blood from _________ and _________ percolates from the triad regions through these sinusoids and empties into the central vein.
liver sinusoids
Hepatic artery
Hepatic vein
Inside the sinusoids are hepatic macrophages ( ___________ ) which remove debris, bacteria and worn-out blood cells from the blood as it flows by.
Kupffer cells
Secreted bile flows through tiny canals called ________ that run between adjacent hepatocytes towards the bile duct branches in the portal triad.
bile canaliculi
Is it TRUE that blood and bile flow in same
directions in the liver lobule.
False: It flows in opposite directions.
What are the functions of Hepatocytes?
1) Produce bile
2) Store nutrients such as glycogen
3) Store fat soluble vitamins
4) Play role in detoxification
What happens to the blood after being processed by the hepatocytes?
blood leaving the liver contains fewer waste materials than the blood that entered it.
