Flashcards in GI Deck (160)
Most common location of salivary gland tumors:
Most common salivary gland tumor:
Second most common:
Most common malignant salivary gland tumor:
This very common genetic defect is a risk for duodenal atresia:
Jejunal, ileal, and colonic atresia are due to this event during fetal development. What about duodenal atresia?
Duodenal = failure to recanalize
Jejunal et c = vascular accident
This anterior abdominal wall defect can contain a herniated liver, whereas this does not.
Omphalocele can have the liver protruding
Gastroschisis does not
These structures are retroperitoneal (9):
A DUCK PEAR:
Colon (descending and ascending)
Pancreas (except tail)
Aorta / IVC
Three metabolic abnormalities that may be seen in an infant with pyloric stenosis:
Hypokalemia (K+ shift into cells to allow H+ out into blood)
Pale clay colored stool, tea urine, jaundice in the first weeks of life:
Extrahepatic biliary stenosis, failure of the bile ducts to completely re-canalize.
The pancreas is derived from this embryonic structure:
Which pancreatic bud contributes to the head and main pancreatic duct?
How does an annular pancreas happen?
Ventral bud is in two pieces
Dorsal / ventral fuse abnormally and encircle the duodenum.
Where does the spleen come from? From what tissue layer is it derived?
The stomach mesentary, it's mesodermal.
What structures come from the hepatic diverticulum off the ventral foregut?
Gall bladder / biliary tree
Ventral pancreatic bud
Which pancreatic bud travels to meet the other bud?
Ventral swings around dorsally to join the dorsal pancreatic bud.
This embryonic structure gives rise to the body, tail, and isthmus of the pancreas:
Dorsal pancreatic bud
This ligament contains the portal triad:
Access to the lesser sac through this ligament:
The tail of the pancreas is embedded in this ligament:
The gastric arteries are in this ligament:
This ligament is the remnant of the fetal umbilical vein:
Ligamentum teres hepatis
What are the layers of the gut wall (inside out) (4)?
Serosa / adventitia
This type of injury extends into the submucosa:
Where is the myenteric nerve plexus? What is its other name?
Myenteric = Auerbach's
It is the OUTERbach's plexus
This nerve plexus is the inner nerve plexus and is located in the _________.
Submucosal nerve plexus is the inner one, aka Meissner's, it's in the submucosa, of course.
Three arteries to the GI structures come off the aorta anteriorly:
What is SMA syndrome?
The duodenum gets caught between the SMA and the aorta and is obstructed.
Parasympathetic innervation for the:
Foregut and midgut = vagus
Hindgut = pelvic
The artery that supplies the foregut: