liver structure and function

Question 1

2 major lobes of liver

Answer 1

right > left

Question 2

2 minor lobes liver

Answer 2

caudate

quadrate

Question 3

porta

Answer 3

exit/entry of blood vessels, lymphatic vessels, ducts,nervs

Question 4

sequence of ducts

Answer 4

L + R hepatic ducts –> common hepatic duct joined by cystic duct from gallbladder –> common bile duct and pancreatic duct –> sphincter of oddi

Question 5

bare area of liver

Answer 5

small area on diaphragmatic surface which is not covered by connective tissue capsule and visceral peritoneum

surrounded by coronary ligament

Question 6

portal triad

Answer 6

hepatic portal vein
hepatic artery
hepatic duct

Question 7

hepatic cords

Answer 7

radiate out from central veins

composed of hepatocytes

Question 8

hepatic sinusoids

Answer 8

blood channels between hepatic cordds

Question 9

alimentary role of liver

Answer 9

production and secretion of bile

Question 10

six components of bile

Answer 10

bile acids
lecithin 
cholesterol
bile pigments
toxic metals 
bicarbonate

Question 11

bile pigments

Answer 11

breakdown products from old/damaged erythrocytes

Question 12

bile acids

Answer 12

synthesised in liver from cholesterol

before secretion they are congugated with glycine or taurine –> bile salts

Question 13

gallbladder histological layers

Answer 13

mucosa
muscularis
serosa (connective tissue)

Question 14

ducts out gallbladder

Answer 14

gallbladder –> cystic duct –> common bile duct

Question 15

what controls bile secretion

Answer 15

sphincter of oddi controls release of bile and pancreatic juice into duodenum
when contraced bile forced back into gallbladder

Question 16

CCK and bile secretion

Answer 16

sphincter of oddi relaxes

gallbladder contracts

Question 17

what does gallbladder so

Answer 17

stores and concentrates bile