Liver and GI Flashcards
What liver lobes make up the right division, central division, and left division in carnivores?
Right division - right lateral and caudate
Central - right medial and quadrate
Left - left medial and lateral
What lobes surround the gallbladder in carnivores?
Right medial and quadrate
What are the branches of the portal vein in the liver? What lobes do they supply? What is the vein immediately caudal to the porta hepatis?
Left - Branches to supply the right medial (central divisional) and other branch supplies the left lobes and quadrate lobes
Right - right lateral and caudate lobes
Gastroduodenal vein is immediately caudal
In what angiographic phase were the hepatic veins best identified?
Arterial phase; non-contrast enhanced veins were accentuated by arterial parenchymal enhancement
Where is the majority of the liver mass in the horse?
What lobes does the horse have?
Does the horse have a gallbladder?
2/3rds of liver located right of midline
Left lateral and medial, quadrate, and right lateral and medial. Left and quadrate are separated by round ligament
No gallbladder
Where is the liver located in bovines?
Right of midline
What is the pancreatic duct anatomy of the dog?
Accessory duct (minor DP) is primary Pancreatic duct is usually present, but may be absent (major DP with CBD)
What is the pancreatic duct anatomy of the cat?
Pancreatic duct (major DP) is primary Accessory duct is often absent
What is the pancreatic duct anatomy of the horse?
What is unique about the duodenal papillae?
Horses always have both pancreatic and accessory ducts
DP are at the same level, but on opposite walls
What is the pancreatic duct anatomy of the bovine?
What is unique about the duodenal papillae?
Accessory pancreatic duct only; minor DP is fat down descending duodenum (20-25cm) compared to major duodenal papilla
What is the ICJ anatomy in the cat?
No cecocolic junction
What is the ICJ anatomy in the dog?
Ileocolic sphincter and cecocolic sphincter
Cecum and ileum are NOT connected
What is the ICJ anatomy in the horse?
2 openings into cecum 1) ileocecal 2) cecocolic
Because of folding, these end up being at a similar level in the transverse plane
What is the ICJ anatomy in the bovine?
Cecum is large, blind-ended tube connecting directly with ascending colon
What are the parts of the equine colon?
Sigmoid flexure off of the cecum –> right ventral –> ventral diaphragmatic flexure –> left ventral –> pelvic flexure –> right dorsal –> dorsal diaphragmatic flexure –> left dorsal –> transverse and descending colon (aka small colon)
