Flashcards in Week 5 - Liver, biliary tree and pancreas anatomy Deck (39):
What structures lie posterior to the liver?
-1st part of duodenum
Descrube the diaphragmatic surface of the liver
-Smooth and convex with a bare area which is not covered by visceral peritoneum
Describe the ligaments of the liver
-Falciform -> anterior liver to anterior abdominal wall and contains ligamentum teres
-Coronary ligament -> superior liver to diaphragm
-Triangular ligaments ->outside of coronary ligament and attach superior surface to diaphragm
What is ligamentum teres?
-Remnant of umbilical vein
Describe the relationship between liver and lesser omentum
-attached to liver via hepatoduodenal and hepatogastric ligaments of lesser omentum
how is the liver secured to the IVC?
-Posteriorly by hepatic veins and fibrous tissue
What is the name of the capsule of the liver?
What is a hepatic recess? Name the hepatic recesses and their locations
-Hepatic recesses are spaces between the liver and its surroundings
-Subphrenic -> between diaphragm and liver
-Subhepatic-> between inferior liver and transverse colon
-Morrison's pouch -> between posterior liver and right kidney
Why are hepatic recess of interest?
-Fluids can collect in these spaces
Describe the lobes of the liver
-Right and left lobes diveded by falciform
-Caudate lobe on superior posterior right lobe
-Quadrate lobe on inferior posterior right lobe between gall bladder and fossa of ligamentum teres
What is the porta hepatis?
-Between caudate and quadrate lobe
-Transmits all vessels, nerves and ducts entering/leaving the liver
Describe the arterial supply to the liver
-Hepatic artery proper derived from common hepatic artery of celiac trunk
Describe the venous drainage to and from the liver
-Hepatic portal vein supplies the liver with all deoxygenated blood carrying nutrients absorbed from small intestine
-3 hepatic veins take clean blood to IVC
What converges to make portal vein?
State the nerve supply to the liver
-Symp = celiac plexus
-Parasym = vagus
Describe splenic rupture
-Often caused by blunt/penetrating trauma or left rib fractures
-Break in fibroelastic capsule causes profuse bleeding
What is the function of the gall bladder?
Describe the connections of the biliary tree
-Left and right hepatic ducts form common hepatic bile duct from liver which becomes common bile duct after cystic duct joins
-Common bile duct goes into amuplla of varter after pancratic duct joins
-Enters 2nd part of duodenum through major duodenal papilla controlled by sphincter of oddi
To what organ is the biliary tree bound?
What artery supplies the gall bladder and billary tree? From where is it derived?
-Hepatic artery proper
What is the result of parasympathetic innervation to gall bladder?
-Contraction and secretion
Which hormone has a major secretory effect on the gall bladder?
From where is cholecystokinin secreted?
What are the common complications of gallstones?
What are the 3 types of gall stones?
What are risk factors for gall stones?
In who are gall stones more common?
What is the treatment for gallstones?
What is the function of the spleen?
-To filter blood and remove old RBCs
Where is the spleen?
-Intraperitoneal organ in ULQ behind ribs 9-11
Can the spleen be palpated in a healthy patient?
What is the exocrine function of the pancreas?
-Secrete digestive enzymes
What is the endocrine function of the pancreas?
Where is the pancreas?
-Posterior to stomach with head in duodenum and tail in splenic hilum
Where is the unicate process of the pancreas?
-Neck overlying SMA/SMV
Describe how the digestive enzymes enter the duodenum
-Acini secrete digestive enzymes into intralobular collecting ducts which join to form the pancreatic duct which unites with common bile duct
Name the structures in the porta hepatis
-Hepatic portal vein, common hepatic artery and common bile duct
What arteries supply the pancreas?
-superior and inferior pancreaticoduodenal