Role of liver

Question 1

what is the hepatic portal vein

Answer 1

the vein that transports blood directly from stomach and villi of small intestine to the liver

Question 2

what is the hepatic portal system

Answer 2

all the blood that flows from digestive organs to liver and from the liver to the hearth

Question 3

where does the liver receive digested food from?

Answer 3

it receives all digested food absorbed by villi in the small intestine

Question 4

how does the lymphatic system affect the liver

Answer 4

it transports fats to the liver indirectly

Question 5

what are the functions of the liver? (4)

Answer 5

Absorbed
stored
broken down
detoxified

Question 6

explain the absorption of food in liver

Answer 6

Food is absorbed and then released into the blood stream.

the liver regulates amount of nutrients entering circulatory system

Question 7

explain the storing of food in the liver

Answer 7

when food is stored, glucose is converted into glycogen (glucose metabolism). the liver is responsible for regulating blood sugar levels.

Question 8

The body cant store what so what does it do to it?

Answer 8

since the human body cannot store proteins, the liver converts any extra amino acids into fats or carbs.
this process starts with deamination which is the removal of nitrogen-containing amino group from amino acids

Question 9

what do enzymes in the liver do to amino acids

Answer 9

the enzymes break down amino acids into glucose and ammonia. (ammonia is excreted via kidneys as urea)

Question 10

what is meant by detoxified

Answer 10

this is when harmful substances such as alcohol, drugs and hormones are metabolized in the liver