10/19 Abdomen III Flashcards
(24 cards)
contents of foregut
abdominal esophagus 1st part duodenum liver gallbladder spleen pancrease stomach
location/protection of stomach
ULQ
lower thoracic wall protects
where does the pyloris cross the midline
L1 disc/transpyloric plane
location of cardia and fundus of stomach
adj to diaphragm, deep to left costal margin
parts and characteristics of pylorus
thickened smooth muscle
gastro-duodenal jxn marked by pyloric sphincter around pyloric canal at the L1 disc level. antrum leads into canal
location/protection of spleen
ULQ, posterior/left of stomach
two surfaces of spleen
lateral/diaphragmatic
visceral/medial: contains hilum
gastric surface
renal surface (L kidney, attached via splenorenal ligament (greater omentum))
colic surface (L colic/splenic feature, transition btween transverse and descending colon)
what ligament contains the tail of pancreas and distal splenic vessels
splenorenal ligament
how does the spleen attach to the stomach
gastrosplenic ligament (greater omentum)
location of the liver
URQ, deep to R costal margin
2 surfaces of the liver
diaphragmatic: smooth, sup/ant, falciform ligament, ligamentum teres
visceral: post/inf, attaches to lesser omentum, contains porta hepatis, ligamentum venosum
bare area of the liver
posterior right surface
division of 4 lobes of liver, visceral surface
“H”
lig venosum (caudate lobe) fossa for IVC
(left lobe) portal hepatis (right lobe)
lig teres (quadrate lobe) fossa for gallbadder
contents and location of portal triad
hepatoduodenal ligament (lesser omentum)
comon bile duct
portal vein
proper hepatic a
major duodenal papilla
divides foregut and midgut
where bile and pancreatic secretions enter 2nd part of duodenum
location of pancreas
post abdominal wall, btwn duodenum (R) and spleen (L)
4 segments of pancreas
retroperitoneal: head, neck, body
intraperitoneal: tail (in splenorenal ligament)
main pancreatic duct
deep to body and neck of pancreas, dumps into common bile duct, then major duodenal papilla (2nd pt duodenum)
occasionally, pts have an accessory duct just superior
problem: liver’s bare area
lymphatic vessels pass btwn lungs and liver w/o encountering a boundary of peritoneum and can facilitate the spread of cancer and infection
problem: gall stones
can occur in several parts of billary tree
problem: stomach ulcer
if erodes posterior stomach wall, endangers splenic a, threatens blood supply to fundus (only supply), and greater curvature (not as bad, anastomoses of gastroepiplotic aa)
problem: duodenal ulcer
if in 1st part, endangers gastroduodenal a (blood supply to pylorus, 1st part of duodenum, and head of pancreas)
3 branches of celiac trunk
left gastric a
splenic a
common hepatic a
3 anastomoses of celiac trunk
L gastric a (directly off CT) + R gastric a (from common hepatic a/ proper hepatic a)
L gastroepiplotic a (from splenic a) + R gastroepiplotic a (from gastroduodenal a/proper hepatic a)
sup. pancreaticoduodenal aa (from gastroduodenal a/proper hepatic + inf pancreaticoduodenal aa (from superior mesenteric a
