case 5 anatomy Flashcards
(32 cards)
In which abdominal region is liver situated in?
Right upper quadrant liver occupies most of the right hypochondrium & upper epigastrium and extends into the left hypochondrium
Falciform ligament divides the liver into
Right and left lobes
Where does the falciform ligament attach to?
From anterior margin of left liver lobe to abdominal peritoneum
Where and what is the ligamentum teres or round ligament?
in the free edge of the falciform ligament, it’s the remnant of foetal umbilical vein
Where is the subhepatic recess?
Between inferior surface of liver and transverse colon
Where is the subphrenic recess?
between the diaphragm and the superior & anterior aspects of the diaphragmatic surface of the liver
Which structures lie in the right sagittal fissure?
IVC and gall bladder
Which structures lie in the left sagittal fissure?
Ligamentum venosum and round ligament of liver
What is ligamentum venosum?
Embryological remnant of ductus venosum connecting umbilical vein to IVC, surpassing the liver
Horizontal groove contains the ports hepatis Name the structures enter/exit here?
Hepatic artery, Portal vein, Bile duct
Name the 4 lobes of liver
Right, Left, Caudate, Quadrate
The peritoneal reflections that surround the bare area form
Coronary ligament
Coronary ligament consists of
Anterior and posterior leaves
Anterior and posterior leaves of coronary ligament meet in the right and left to form
Right and left triangular ligaments
Route taken by bile from liver to gall bladder or to duodenum
Bile leaves the liver via small biliary ducts into the larger right & left hepatic ducts to common hepatic duct to cystic duct form gall bladder joins to form common bile duct to major pancreatic duct to empty bile into the ampulla which then empties into the second part or descending part of the duodenum
What percentage of blood supply of liver comes from hepatic artery proper
20-25%
Where does hepatic artery proper arise from?
Coeliac trunk
Where does hepatic artery bifurcate into right and left hepatic arteries?
At the porta hepatis
What percentage of blood supply of liver comes from hepatic Portal vein
75-80%
Which vessels join to form hepatic portal vein
Superior mesenteric vein and splenic vein join posterior to neck of pancreas
Where does inferior mesenteric vein drain into?
Splenic vein
Where do hepatic veins drain into?
into the inferior vena cava just inferior to the diaphragm.
Lymphatic drainage of liver
hepatic lymph nodes to Celiac lymph nodes to Cisterna chyli to Thoracic duct
Sympathetic innervation and action on liver
Hepatic plexus from celiac plexus and cause glycogenolysis, gluconeogenesis, VLDL secretion, and ketogenesis
