wk 3 1 anatomy of jaundice pt 2 Flashcards
duodenum can be separated into 4 parts, superior, descending, horzontal, ascending. Which parts are retroperitoneal
descending
horizontal
ascending
superior - part intraperitoneal
sympathetic stimulation of pyloric sphincter will cause
contraction
2 peptide hormones secreted to blood in duodenum
gastrin
CCK
what does CCK cause an increase in movement of
bile
associated pain from a duodenal ulcer
epigastric region
foregut and midgut pain is usually
epigastric
umbilical
(not neccessarily, as duodenal pain in epigastric)
t/f pancreas is intraperitoneal
false
pancreas = retroperitoneal
ampulla vater is
the hepatopancreatic ampulla, where pancreas drain meets the common hepatic duct and into duodenum
(sphincter of oddi)
where in duodenum do he papilla lie, which side
2nd part - descending
posterior side
difference between cystic duct and other ducts
is a spiral, aids control for storage
jaundice is due to biliary obstructin, what causes
obstruction of biliary tree
- gallstones
- carcinoma at head of pancreas
how does biliary obstruction cause jaundice
flow of bile back up to liver
overspill into blood
what can happen if obstruction affects head of pancreas
digestive enzymes pushed back and into other tissues, may erode
where does the anastmosis lie in relation to the duodenum and pancreas? what arteries do these come from
superior pancreaticoduodenal artery (gastroduodenal a.)
and inferior pancreaticoduodenal artery (superior mesenteric a.\0
where does the superior mesenteric artery come off of the aorta (vertebral level)
at L1
pancreatitis can be due to blockage of ampulla by gallstone, where is rhe pain related
foregut and midgut organ:
epigastric/umbilical pain which can also radiate to the back
vascular haemorrahe can occur in acute pancreatitis,where would this be observed
pool in the retroperitoneal space (not going to pouches!!)
grey-turners sign - right/left flanks, where kidneys lie
cullens sign - around umbilicus via falciform lig.
colour, wall,vascular, fat, folds ,lymph tissue differecnes of jejunum and ileum
jejunum - deep red, thick and heavy, more vascular, less fat, large tall packed folds, and no lymph tissue (more associated with ileum, might be a bit) (peyers)
jejunum and ileum supplied by
superior mesenteric artery (midgut)
vessels of midgut travel within
the mesentery
explain how venus drainage works in jejunum and ileum
begins jejunal and ileal veins
- superior mesenteric vein
- hepatic portal vein
when chylomicrons are absorbed from intestinal cells, they go into specialised lymphatic vessels, name
lacteals
lacteals travel via lymph system and eventually drain into the venous system via
left venous angle
venous angle from
subclavian and internaljugular