More on the abdomen Flashcards
Supplies blood to the forgut
Celiac trunk
What are the 3 branches off the Celiac trunk
- Splenic a
- Left gastric a
- Common hepatic a
What are the branches off of the splenic artery?
- Left gastroepiploic
- Greater Pancreatic artery
- Short gastric artery
What are the 3 branches off the common hepatic artery
- Right gastric a
- Proper hepatic
- Gastroduodenal a
What are the branches off of the Gastroduodenal artery
- Supraduodenal a
- Superior pancreaticoduodenal a
- R gastric
What parts of the gut is the duodenum?
- Part foregut
- Part midgut
The duodenum and the pancreas recieve superior and inferior blood supplies, what are they and what are they branches of?
- Superior pancreaticoduodenal= Celiac
- INferior pancreaticoduodenal= Superior mesenteric
What are the 4 parts of the duodenum?
1=Superior
2=Descending
3=Horizontal
4= Ascending
What is the relationship between the duodenum and the pancreas?
Duodenum is nestled in the head of the pancreas
Where does the duodenum end?
At the duodenojejunal junction @ the duodenojejunial flexure
Where does the majority of the duodenum lie in relationship to the peritoneum?
Mostly retroperitoneal
Where do bile and pancreatic enzymes enter the duodenum?
They combine to form the Hepatopancreatic Ampulla
-This forms the major duodenal papilla
The suspensory muscle (ligament of trietz) is composed of…
- Skeletal muscle from the right crus
- Smooth muscle from the distal part of the duodenum
The pancreatic duct joins the bile duct to form…
Hepatopancreatic ampulla
Where does the hepatopancreatic ampulla drain into?
Major duodenal papilla
What houses the opening of the accessory pancreatic duct?
Minor duodenal papilla
Describe where the jejunum is found and what it looks like
Jejunum= upper 2/5
- LUQ
- Deep Red
Describe where the ilium is found and what it looks like
Ilium= lower 3/5
- RLQ (bc it eventualy attaches to the cecum)
- Pale pink
What part of the ilium and jejunum are attached to the mesentery?
ALL OF THEM
-Obliquely and inferiorly directed to the right
What are the 3 main external features of the LI?
- Teniae coli
- Haustra
- Epiploic appendages
These are bundles of longitudinal SM
Teniae
How many teniae coli are there and what are they?
3
- Transverse & Sigmoid mesocolon
- Omenum
- Free
These are sacculations formed by the teniae because the teniae are shorter than the colon itself
Haustra
These are fatty eternal projections
Epiplotic appendages
What is the significance of the rectosigmoid junction?
- Teniae end at this junction
- Omental appendices stop here
- Edge of sigmoid mesocolon occurs here
