The development of the liver and gall bladder explained in less than 10 minutes.

If you are completely new to embryology and you want to understand it quickly, this should be the first video you watch:
   • Introduction to Embryology  Fertilis...  

Post any questions you have about the video below, I read all the comments:


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Summary for your notes:
liver appears week 3 as an outgrowth of endoderm (epithelium of the GIT) at the distal end of the foregut
liver bud = hepatic diverticulum
rapidly grows/proliferates into the spetum transversum (mesoderm)
bile duct forms from the connection of the liver to the duodenum
gallbladder and cystic duct grow from the bile duct
epithelial liver cords mingle with the vitelline and umbilical veins and form hepatic sinusoids
liver cords become liver cells and form lining of biliary ducts
septum transversum forms the haematopoietic cells, Kupffer cells, and connective tissue cells
lesser omentum and falciform ligament are derived from ventral mesentery
all of the liver is covered in peritoneum except the area in contact with the diaphragm (bare area)

Abnormalities:
accessory hepatic duct
duplication of the gallbladder
extrahepatic biliary atresia
infraheptic biliary duct atresia and hypoplasia