abdominal pain

Question 1

Gall bladder

Answer 1

pear shaped sac, 30-50 ml
located in the fossa on the inferior surface of the liver
3 main anatomic areas

Blood supply- cystic artery (triangle of calot)

venous drainage- small veins enter directly to the liver

Lymphatic- nodes at the neck of GB

Question 2

gall bladder anatomy

Answer 2

fundus- may be palpated, in angle between lateral border of right rectus abdominis and costal margin, at level of elbow, most anterior visceral structure

Body- visceral surface of liver, deep to transvers colon or hepatic flexure of colon, descending portion of duodenum is medial

Neck- continuous with cystic duct, characterized by a spiral valve (of heister)

Spiral valve of Heister- makes endoscopic cannulation or catheterization extremely difficulty

Question 3

Extra hepatic biliary tree

Answer 3

common bile duct 10-15 cm long, diameter is 1-2 mm adn no more than 6mm

Courses through lesser omentum, deep to pyloric sphincter

Combines with pancreatic duct to empty into duodenum at ampulla of vater

sphincter of oddi guards duct, regulates bile flow