Liver, Pancreas, Spleen (1.10) Flashcards
What kind of organ is the liver?
The liver is a large glandular organ…secretes bile
What is the Porta hepatis?
Entry/exit site of blood vessels and bile ducts to the liver
What are the four lobes of the liver?
Left
Right
Caudate
Quadrate
What is the physiological split of the liver?
Right (receives from right portal vein, right hepatic artery, and right bile ducts)
Left, Caudate, and Quadrate (receive from left portal vein, left hepatic artery, and left bile ducts)
What separates the four lobes of the liver?
An H-shaped group of fissures and wide sulci
What forms the right sagittal limb of the liver’s H?
Sulcus for the inferior vena cava
Fossa for the gallbladder
What forms the left sagittal limb of the liver’s H?
Fissure for the ligamentum venosum (ductus venosus in fetus)
Fissure for the ligamentum teres hepatis (oblterated umbilical vein)
What forms the portal limb (or cross limb) of the liver’s H?
Porta hepatis
Where does the gallbladder lie?
The right edge of the right edge of the quadrate lobe
What is the gallbladder derived from?
The gallbladder is derived from the foregut
What is the role of the gallbladder?
The gallbladder stores and concentrates bile between active digestion sessions
What are the parts of the gallbladder?
Fundus
Body
Neck
Cystic duct
Where does the cystic artery usually arise from?
Usually from the right hepatic artery in the triangle of calot
Variations happen
What is biliary colic?
The spasmodic pain that accompanies gallstones
Is the pancreas intra- or retro-peritoneal?
Both…
Almost entirely retro
Tail lies within the hilus of the spleen and is intraperitoneal
What are the parts to the pancreas?
Head (w/in curve of duodenum)
Neck (where splenic and SMV meet to form portal vein)
Body (provides attachment for transverse
Tail (passes b/w the two layers of the slpenorenal ligament with the splenic vessels)
Where is the origin of the main pancreatic duct?
At the tail of the pancreas…it runs through the gland…developed from ventral pancreas
Where does the main pancreatic duct go after leaving the pancreas?
Usually joins the bile duct to form the heptaopancreatic duct…then opens into the duodenum
Where does the hepatopancreatic duct open into the duodenum?
At the summit of the major duodenal papilla…open separately in 25% of the cases
What is the accessory pancreatic duct?
Small duct that drains head of pancreas
What does the accessory pancreatic duct usually join with?
Main pancreatic duct
Can remain independent and open into the duodenum at the summit of the minor duodenal papilla
A gallstone gets stuck in the hepatopancreatic duct: what is one possible effect?
Pancreatitis…bile is forced into the pancreatic duct
Where is pancreatic cancer usually involved?
The head of the pancreas
What arteries feed the pancreas?
Branches of the splenic artery
Gastroduodenal artery
Superior mesenteric branches
