Chapter 3 (page 16)

Question 1

The veins draining the digestive organs spleen and pancreas empty their blood into a common
vessel called ______________ .

Answer 1

The hepatic portal vein

Question 2

This path forms a unique blood route through the liver

called ______________ .

Answer 2

The hepatic portal circulation

Question 3

The blood coming from the digestive organs _______ and ______ is transported to the ______ before it enters the _______________.

Answer 3

spleen
pancreas
liver
major systemic circulation.

Question 4

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 __________ .

Answer 4

hepatic portal vein
hepatic portal system
hepatic veins
inferior vena cava.

Question 5

Such a venous system, veins-capillaries-veins, is called a portal system.

Answer 5

a portal system.

Question 6

What system delivers blood filled with nutrients from the digestive organs to the liver?

Answer 6

The hepatic portal system

Question 7

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.

Answer 7

hepatic portal system

phagocytic cells

Question 8

Liver is composed of what structural and functional units:

Answer 8

The liver lobules.

Question 9

Liver lobules, each lobule is the size of a sesame seed. True or False?

Answer 9

True

Question 10

Liver cells are also known as:

Answer 10

Hepatocytes

Question 11

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.

Answer 11

six -sided

outward

Question 12

A portal triad is consists of:

Answer 12

Hepatic artery branch
Hepatic portal vein branch
Bile duct

Question 13

Located at each of the six corners of a lobule is __________ .

Answer 13

A portal triad

Question 14

Between the plates are capillaries ( __________ ) . Blood from _________ and _________ percolates from the triad regions through these sinusoids and empties into the central vein.

Answer 14

liver sinusoids
Hepatic artery
Hepatic vein

Question 15

Inside the sinusoids are hepatic macrophages ( ___________ ) which remove debris, bacteria and worn-out blood cells from the blood as it flows by.

Answer 15

Kupffer cells

Question 16

Secreted bile flows through tiny canals called ________ that run between adjacent hepatocytes towards the bile duct branches in the portal triad.

Answer 16

bile canaliculi

Question 17

Is it TRUE that blood and bile flow in same

directions in the liver lobule.

Answer 17

False: It flows in opposite directions.

Question 18

What are the functions of Hepatocytes?

Answer 18

1) Produce bile
2) Store nutrients such as glycogen
3) Store fat soluble vitamins
4) Play role in detoxification

Question 19

What happens to the blood after being processed by the hepatocytes?

Answer 19

blood leaving the liver contains fewer waste materials than the blood that entered it.