Lecture 18 Flashcards
What kind of glandular organ is the pancreas?
Exo and endocrine
What are the three regions of the pancreas?
Head, neck, body
Where is the head of the pancreas situated?
In concavity of the second part of the duodenum
What is the uncinate process?
Continuation which wraps behind the superior mesenteric vessels.
Describe the neck of the pancreas. Where is it situated?
Narrow area from head to body. Lies anterior to SM vessel origins
What is the position of the body of the pancreas?
Passes across to the left and superiorly. Hooks to where spleen is.
Where does the tail of the pancreas pass? What is it in contact with?
Passes into lienorenal ligament and in contact with hilus of spleen
How would you describe the pancreas in relation to peritoneum?
Secondary retroperitoneal
What structures are anterior to the pancreas?
Transverse colon, stomach
What structures are posterior to the pancreas?
Bile duct, portal vein, splenic vein, IVC, aorta, superior mesenteric artery, L psoas, L supra-renal gland, L kidney, spleen
What is the pathway of the main duct of the pancreas?
From tail to ampulla of Vater (joined by bile duct) and enters the descending duodenum via the sphincter of Oddi (major duodenal papilla)
If the accessory duct is present what does it drain into?
Upper part of head and into duodenum (not at ampulla of Vater) at minor duodenal papilla
What is the arterial supply of the pancreas
Coeliac origin
- Common hepatic - Gastroduodenal - Superior pancreatoduodenal
- Splenic - Dorsal pancreatic and Greater pancreatic
Superior mesenteric - Inferior pancreatoduodenal
What is the venous drainage of the pancreas?
Blood will flow back to the portal vein regardless of artery origin back through splenic or SMV into liver, into IVC
Describe the lymphatics of the pancreas
Majority of lymph: Coeliac nodes
SM nodes
What is the autonomic nervous system supply of the pancreas?
Mostly coeliac (SM) plexi
- Greater and lesser splanchnic
- Vagus [X]
Where is pain in the pancreas referred to?
Epigastric region
What are the functions of the spleen?
Filters and recycles blood and supports immune system
Where does the spleen lie?
Inferior to ribs 9-11 in the left hypochondrium posterior to the stomach
What are the two ligaments of the spleen?
Gastrosplenic ligament
Splenorenal ligament
What are the two ligaments of the spleen remnants of?
Dorsal mesogastrium
What does the gastrosplenic ligament carry?
Short gastric and gastro-epiploic vessels
What does the splenorenal ligament carry?
Splenic vessels and tail of pancreas
What is anterior to the spleen?
Tail of pancreas
Left colic flexure
Stomach
