LEC 18 BIOL 431
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1
What are some facts about the liver?
Size of a football and 3lbs
First to receive nutrients and toxins
First to receive nutrients and toxins
2
What are the 2 roles of the liver?
Digestion - production of bile
metabolic - breakdown of nutrients thru synthesis of vitamins
metabolic - breakdown of nutrients thru synthesis of vitamins
3
What are the 3 functions of the liver?
Detoxification
synthesis
storage
synthesis
storage
4
What is detoxification in the liver?
Enzymes break down the poisons and toxins into less harmful
EX ammonia from ATP production is converted to urea
also breaks down RBC & WBC
EX ammonia from ATP production is converted to urea
also breaks down RBC & WBC
5
What does the synthesis function of the liver do?
Prod bile salts to break down fat
prod heparin = anticoagulant
vitamin d activation
prod heparin = anticoagulant
vitamin d activation
6
What is stored in the liver?
Vitamin D,E,K
glycogen
glycogen
7
What is the flow of blood through the liver
Hepatic A. > hepatic portal V. > Sinusoids > central V. > hepatic V. > IVC
8
What is the function of the gallbladder?
Storage and concentration of bile salts
concentrates bilirubin 10X
concentrates bilirubin 10X
9
What is the intrahepatic flow of bile?
Bile caniculi > bile ducts> R & L hepatic ducts > Common hepatic duct > common bile duct > hepatopancreatic ampula
10
What is the extraheptaic flow of bile?
gallbladder > cystic duct > hepatopancreatic ampula
11
Facts about the small intestine?
Begins @ pyloric sphincter
end @ ileocecal sphincter
2.5 cm dia, 21 ft long
end @ ileocecal sphincter
2.5 cm dia, 21 ft long
12
What is the function of the small intestine ?
Digeston and abdosrption
13
What are the 3 parts of the intestine and their lengths ?
Duodenum 10 inches
jejunum 8 ft
illeum 12 ft long
jejunum 8 ft
illeum 12 ft long
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