Lower GI and Viscera Flashcards
The triangular ligaments of the liver are formed by folds in what ligament
Coronary
Which ligament forms the natural anatomical division between left and right lobes of the liver
Falciform
… are anatomical spaces between the liver and surrounding structures
Hepatic recesses
Name the 3 hepatic recesses
Subphrenic space
Subhepatic space
Morison’s pouch
What is Morison’s pouch
A potential space between the visceral surface of the liver and the right kidney
What is the subhepatic space
A subdivision of the supracolic compartment between the inferior surface of the liver and the transverse colon
What is the subphrenic space
A space between the diaphragm and the anterior and superior aspect of the liver
The liver is covered by a fibrous layer called …
Glisson’s capsule
What are the the accessory lobes of the liver
Caudate and quadrate
The liver has a unique dual blood supply from the … and …
Hepatic artery proper
Hepatic portal vein
Venous drainage of the liver is achieved through … . These then open into the …
Hepatic veins
IVC
The parenchyma of the liver is innervated by the … . This contains sympathetic (…) and parasympathetic (…) nerve fibres
Hepatic plexus
Coeliac plexus
Vagus nerve
The nerve fibres enter the liver at the …
Porta hepatis
Glisson’s capsule is innervated by branches of the …
Lower intercostal nerves
The arterial supply of the gallbladder is via the … , a branch of the …
Cystic artery
Right hepatic artery
Venous drainage of the neck of the gallbladder is via the … which drain directly into the …
Cystic veins
Portal vein
Venous drainage of the fundus and body of the gallbladder flows into the …
Hepatic sinusoids
Sympathetic and sensory innervation of the gallbladder
Coeliac plexus
Parasympathetic innervation of the gallbladder
Vagus nerve
Lymphatic drainage of the gallbladder
Cystic lymph nodes empty into hepatic lymph nodes and ultimately into the coeliac lymph nodes
Arterial supply of the pancreas
Pancreatic branches of the splenic artery
Superior and inferior pancreaticduodenal arteries (head only)
Venous drainage of the head of the pancreas
Superior mesenteric branches of the hepatic portal vein
Venous drainage of the pancreas (excluding the head)
Pancreatic veins, drain into the splenic vein
Gastrosplenic ligament connects … to …
Spleen
Greater curvature of the stomach
Splenorenal ligament connects … to …
Hilum of the spleen
Left kidney
The arterial supply of the spleen is from the … . As it reaches the spleen in branches into … vessels
Splenic artery
5
Venous drainage of the spleen
Splenic vein. Combines with superior mesenteric vein to form the hepatic portal vein
Innervation of the spleen
Coeliac plexus
Difference in wall thickness between jejunum and ileum
Jejunum-thick
Ileum- thin
Difference in vasa recta (straight arteries coming off arcades) between jejunum and ileum
Jejunum- Longer
Ileum- Shorter
Difference in arcades (arterial loops) between jejunum and ileum
Jejunum- Less
Ileum- More
Difference in colour between jejunum and ileum
Jejunum- Dark red
Ileum- Pink
Arterial supply of jejunoileum
Superior mesenteric artery (branches form arcades and vasa recta)
Venous drainage of jejunoileum
Superior mesenteric vein
Lymphatic drainage of the jejunoileum
Superior mesenteric nodes
Name the 4 parts of then colon (in order from ileocaecal junction)
Ascending, transverse, descending and sigmoid
… are spaces between the ascending/descending colon and the posterolateral abdominal wall
Paracolic gutters
Attached to the surface of the colon are …, small pouches of peritoneum filled with fat
Omental appendices
Running longitudinally along the surface of the colon are three strips of muscle known as the …
Teniae coli
What is the function of the teniae coli on the surface of the colon
Contract to shorten the wall, producing haustra
Blood supply of the ascending colon
Ileocolic artery (SMA) and right colic artery (SMA)
Blood supply of the transverse colon
Right colic artery (SMA), middle colic artery (SMA) and left colic artery (IMA)
Blood supply of the descending colon
Left colic artery (IMA)
Blood supply of sigmoid colon
Sigmoid arteries (IMA)
Venous drainage of ascending colon
Ileocolic and right colic veins, drains into SMV
Venous drainage of transverse colon
Middle colic vein, drains into SMV
Venous drainage of descending colon
Left colic vein, drains into IMV
Venous drainage of sigmoid colon
Sigmoid veins, drains into IMV
Where do the SMV and IMV ultimately drain?
Hepatic portal vein
Innervation of ascending colon and proximal 2/3rds of transverse colon (midgut)
Superior mesenteric plexus
Innervation of distal 1/3rd of transverse colon, descending colon and sigmoid colon (hindgut)
Inferior mesenteric plexus
Lymphatic drainage of ascending and transverse colon
Superior mesenteric nodes
Lymphatic drainage of descending and sigmoid colon
Inferior mesenteric nodes
