Veterinary Anatomy I: CVM 710 Fall 2023 PDF

Veterinary Anatomy I: CVM 710: Fall 2023 025-Abdominal organs: liver, pancreas, spleen Dr. Ismael Concha-Albornoz [email protected] www.anato.cl Learning Objectives 1. Describe the liver: lobes, position, relationship with other organs. 2. Trace the flow of bile to/from the gallbladder via...

Veterinary Anatomy I: CVM 710: Fall 2023 025-Abdominal organs: liver, pancreas, spleen Dr. Ismael Concha-Albornoz [email protected] www.anato.cl Learning Objectives 1. Describe the liver: lobes, position, relationship with other organs. 2. Trace the flow of bile to/from the gallbladder via the hepatic ducts and/or cystic duct, and into the duodenum via the bile duct. 3. Define where the cystic duct becomes the bile duct and where the bile duct empties into the duodenum. 4. Describe the pancreas: lobes, position, relationship with other organs, pancreatic duct and accessory pancreatic duct 5. Identify the peritoneal attachment related with the different portions of the pancreas. 6. Describe the spleen: portions, position, relationship with other organs, splenic hilus. 7. Identify the peritoneal attachment and the relationship with the stomach. Liver: Parietal surface Visceral surface Budras pg. 59 Liver: Lobes Right medial Right lateral Quadrate Left medial Left lateral Caudate Caudate process Papillary process Liver: • • Lobes – Right medial (RM) – Right lateral (RL) – Quadrate (Q) – Left medial (LM) – Left lateral (LL) – Caudate • Caudate process (CP) • Papillary process (PP) Landmarks – Gall bladder • Between right medial and quadrate lobes – Falciform ligament • Between left medial and quadrate lobes Parietal surface (RL) (RM) (LL) (Q) (LM) Evans Figs. 142 & 143 Liver •Lobes –Right medial (RM) –Right lateral (RL) –Quadrate (Q) –Left medial (LM) –Left lateral (LL) –Caudate •Caudate process (CP) •Papillary process (PP) •Landmarks –Gall bladder •Between right medial and quadrate lobes –Falciform ligament •Between left medial and quadrate lobes Biliary System: • • • • • Gall Bladder Cystic duct Hepatic ducts Bile duct Major duodenal papilla Evans Fig. 144 A & Done Pg. 58 Gall bladder Cystic duct Bile duct Santo Tomas University, Santiago Chile Ligaments of the liver : Hold liver in position • Triangular ligaments – Right triangular ligament courses from the right crus of the diaphragm to the right lateral lobe of the liver – Left triangular ligament courses from the left crus of the diaphragm to the left lateral lobe of the liver Ligaments of the liver : Hold liver in position • Coronary ligament – Courses between the diaphragm and liver around the caudal vena cava and hepatic veins Structures arising from the dorsal and ventral mesenteries • Dorsal mesentery – Dorsal mesogastrium (greater omentum) – Mesoduodenum – Mesojejunum – Mesoileum – Mesocolon – Mesorectum • Ventral mesentery – Ventral mesogastrium (lesser omentum) – Falciform ligament – Median ligament of the bladder Santo Tomas University, Santiago Chile Santo Tomas University, Santiago Chile Pancreas: Pancreas: • Function • Body – Near pylorus • Right lobe – Within mesoduode num • Left lobe – Within deep leaf of greater omentum Budras pg. 55 PANCREAS Pancreatic Ducts: • Pancreatic duct – Empties at the major duodenal papilla – Smaller than the accessory pancreatic duct in the dog & sometimes absent – Always present in cats • Accessory pancreatic duct – Empties at the minor duodenal papilla – Larger than the pancreatic duct in the dog – Only present in approximately 20% of cats Evans Fig. 144 A Fundus of stomach Pancreas Left lobe Pancreas Right lobe Descending duodenum Santo Tomas University, Santiago Chile Spleen: • • Located within the superficial leaf of the greater omentum Gastrosplenic ligament Budras pg. 51 & 55 Spleen: • • Located within the superficial leaf of the greater omentum Gastrosplenic ligament Hilus