Flashcards in abdominal viscera Deck (33):
What are the 4 parts of the duodenal?
What is unique about the superior duodenum?
- duodenal cap (mobile, free section) which invaginates into pylorus
What is unique about the descending duodenum?
- contains junction of foregut and midgut --> where common bile duct and main pancreatic duct open
What is unique about the transverse duodenum?
- longest part
- crossed anteriorly by superior mesenteric vessels
What is unique about the ascending duodenum?
- fixed in position by suspensory ligament of treitz - fibromuscular band attached to right crus of diaphragm
What are the 4 regions of the stomach?
What are the blood supplies of the stomach?
- R/L gastric
- R/L gastroepipolic
- short gastric arteries
What happens to the accessory pancreatic duct?
- it disappears
What does the sphincter of Oddi do and where is it contained?
- it contains juices of gallbladder and pancreas
- located in triad in the hepatopancreatic duct`
- divides into 2 branches
1. right gastroepipolic artery
- supplies stomach and greater omentum
2. superior pancreaticoduodenal artery
- passes between duodenum and head pancreas
what veins form the portal vein?
1. splenic vein
2. superior mesenteric vein
3. inferior mesenteric vein can join either of these two veins
what structures does the inferior mesenteric artery supply?
1. left colic artery
- descending colon
2. sigmoid arteries
- sigmoid colon
3. superior rectal artery
- drains abdominal part of gut, spleen, pancreas, gallbladder
- receives left gastric (coronary) vein
- carries 2X more blood as hepatic artery
- higher BP than IVC
What is near the caudate lobe of the liver?
- left IVC (C-C)
What is near the quadrate lobe of the liver?
- gallbadder (GQ)
What is the blood supply and where does the quadrate lobe of the liver drain?
- left hepatic artery
- drains bile into left hepatic duct
* left lobe liver
What is the blood supply and where does the caudate lobe of the liver drain?
- right and left hepatic arteries
- drain bile into both right and left hepatic duct
* left lobe liver
What covers the kidney?
- fatty layer
- NOT parietal layer
S: suprarenal (adrenal) gland
D: duodenum (second and third part)
P: pancreas including tail
C: colon (ascending and descending)
What is defines retroperitoneal?
These organs are only covered in peritoneum on their anterior surface.
- pierces psoas muscle and descends anterior surface
- pierces transverse muscles
- accompanies spermatic cord/round ligament--> continues through inguinal canal
--> femoral cutaneous branches
Which is SHORTER? the left or right crus
What are the two branches of autonomic ganglia?
1. Sympathetic chain (paravertebral) ganglia
2. Collateral (prevertebral) ganglia
What is the paravertebral ganglia?
- composed of ascending and descending preganglionic sympathetic GVE fibers and GVA fibers with cell bodies in dorsal root ganglia
- also contain cell bodies of postganglionic sympathetic fibers
What is the prevertebral ganglia?
- celiac, superior mesenteric, aorticorenal, & inferior mesenteric ganglia usually located near origin of respective arteries
- formed by cell bodies of postganglionic sympathetic fibers
- receive preganglionic sympathetic fibers by greater, lesser, least splanchnic nerves
What parts of the colon are retroperitoneal?
What parts of the colon are surrounded by peritoneum?
What parts of the colon have their own mesenteries?
1. transverse (transverse mesocolon)
2. sigmoid (sigmoid mesocolon)
What artery and nerve serves the ascending and transverse colon?
- superior mesenteric artery
What artery and nerve serves the descending and sigmoid colons?
- inferior mesenteric artery
- pelvic splanchnic nerves
What are the structures that comprise the large intestine?
5. anal canal