Organs of the GI tract Flashcards
the thoracic esophagus pierces the diaphragm at
T10
the esophageal hiatus is ___ __ of the midline
slightly left
esophagus turns sharply left to enter the stomach at the cardiac orifice at
T11
sliding hiatal hernia
esophageal hiatus of diagphragm enlarges or weakens
abdominal esophagus and parts of stomach herniate into thorax
paraesophageal hiatal hernia
defect in diaphragm next to esophageal hiatus
permits fundus of stomach to herniate
stomach proximal and distal location
and regions
proximal T10-T11
distal: L1-L2
left hypochondriac and epigastric regions
pyloric sphincter/orifice
contracts to keep stomach contents in stomach, becomes orifice when ready to send contents into duodenum
posterior to the stomach
diaphragm, spleen, left upper kidney, suprarenal gland, transverse colon, pancreas, transverse mesocolon
anterior to stomach
left diaphragm, caudate and quadrate and left lobe of liver, left costal margin
anterior surfaces of stomach
phrenic, hepatic, epigastric
duodenum location
L1 to L4
4 parts of duodenum
superior, descending, horizontal, ascending
parts of duodenum that is 2nd perit
all but parts of 1st and 4th
duodenum is covered anteriorly by peritoneum except where?
where mesocolon of transverse colon crosses the second part. no perit here
1st part of the duod is surrounded by?
hepatoduodenal ligament
the root of the mesentery begins where?
at the duodenojejunal flexure
what part of duodenum is held in place and by what ligament
first part by hepatodueodenal ligament, portal triad is in here
head of pancreas is located where?
inferior to the first part of the duodenum