abdominal viscera Flashcards
What are the 4 parts of the duodenal?
- superior
- descending
- transverse
- ascending
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?
- cardia
- fundus
- body
- pylorus
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`
Gastroduodenal artery
- 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?
- splenic vein
- superior mesenteric vein
- inferior mesenteric vein can join either of these two veins
what structures does the inferior mesenteric artery supply?
- left colic artery
- descending colon - sigmoid arteries
- sigmoid colon - superior rectal artery
- rectum
portal vein
- 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
Sad Pucker
S: suprarenal (adrenal) gland A: aorta/IVC D: duodenum (second and third part) P: pancreas including tail U: ureters C: colon (ascending and descending) K: kidneys E: (o)esophagus R: rectum
What is defines retroperitoneal?
These organs are only covered in peritoneum on their anterior surface.
Genitofemoral nerve
- L1-2
- pierces psoas muscle and descends anterior surface
Ilioinguinal nerve
- L1
- pierces transverse muscles
- accompanies spermatic cord/round ligament–> continues through inguinal canal
- -> femoral cutaneous branches
Which is SHORTER? the left or right crus
- left
What are the two branches of autonomic ganglia?
- Sympathetic chain (paravertebral) ganglia
2. Collateral (prevertebral) ganglia
