Celiac Trunk, Esophagus, Stomach, Duodenum Flashcards
name the 3 branches of the celiac trunk
- left gastric
- splenic
- common hepatic
the left gastro-omental artery originates from the ____
splenic a
name 2 branches of the common hepatic artery
proper hepatic
gastroduodenal
name 3 branches of the proper hepatic artery
- right gastric
- right hepatic
- left hepatic
the cystic artery originates from the ____
right hepatic a
name the 2 branches of the gastroduodenal artery
- right gastro-omental
- sup. pancreaticoduodenal
the esophageal hiatus is located at the level of ____
T10
(where esophagus goes through diaphragm)
where is the cardial orifice of the stomach located?
left of midline at level of 7th costal cartilage & T11
what is the Z-line of the esophagus?
mucosa changes from esophageal to gastric
name the 3 esophageal constrictions and their locations
- cervical (upper esophageal sphincter): pharyngo-esophageal junction
- thoracic (broncho-aortic): aorta & left main bronchus
- diaphragmatic: esophageal hiatus
arterial supply of abdominal portion of esophagus
- left gastric a
- left inf phrenic a
venous supply of abdominal portion of esophagus
- portal system (L gastric v)
- vena caval system (azygos v)
the esophagus is innervated by the ____
esophageal plexus
parasympathetic innervation of esophagus
vagus n
sympathetic innervation of esophagus
greater splanchnic n
lymph nodes of esophagus
left gastric & celiac lymph nodes
name 3 functions of the stomach
- food blender & reservoir
- enzymatic digestion
- peristalsis
enzymatic digestion of food in the stomach produces ____
chyme
how much food can the stomach contain?
2-3 L
the gastric canal is located along the ____ of the stomach
lesser curvature
the superior opening of the stomach is called the ____
cardial oriface
where is the cardia of the stomach located?
posterior to left 6th costal cartilage at level of T11
where is the fundus of the stomach located?
posterior to left 6th rib in MCL plane
what separates the fundus and the esophagus?
cardial notch
what dilates the fundus of the stomach?
gas, food, fluid
where is the body of the stomach located?
between fundus & pyloric antrum
pyloric part of stomach
pyloric antrum –> pyloric canal –> pyloric sphincter (pylorus)
arterial supply of the stomach
- celiac trunk branches
- L & R gastric a (anastomose)
- L & R gastro-omental a (anastomose)
- short & posterior gastric aa
the short & posterior gastric arteries are branches of the ____
splenic a
all veins from the stomach drain into the ____
portal v
the prepyloric vein travels…
over pyloric sphincter to R gastric v
lymph nodes of the stomach drain to ____
cisterna chyli
superior 2/3 lymph nodes of stomach drain to…
gastric nodes & pancreaticosplenic nodes
right 2/3 lymph nodes of inferior stomach drain to…
pyloric nodes
left 1/3 lymph nodes of inferior stomach drain to…
pancreaticoduodenal nodes
sympathetic innervation of the stomach
- greater splanchnic n (T6-T9)
- celiac plexus
–> celiac ganglion
parasympathetic innervation of the stomach
- anterior vagal trunk (hepatic, duodenal & ant gastric branches)
- posterior vagal trunk (celiac branch to celiac plexus; posterior gastric branches)
duodenum is latin for ____
“12 fingers” (~25cm)
the duodenum forms a “C” around the ____
head of pancreas
name the 4 anatomical parts of the duodenum
superior
descending
inferior
ascending
the superior part of the duodenum (~5cm) is anterolateral to ____
L1
the first 2 cm of the superior part of the duodenum is called the ____
ampulla
(intraperitoneal)
the ____ ligament attaches to the ampulla
hepatoduodenal
the distal 3cm of the superior part of the duodenum is ____ retroperitoneal
secondarily
the descending part (~7-10cm) of the duodenum descends along…
right side of L1-L3
where does the hepatopancreatic ampulla enter the duodenum?
posteromedial wall of descending part
the descending part (~7-10cm) of the duodenum is ____ retroperitoneal
secondarily
the hepatopancreatic ampulla is continuous with the ____
major duodenal papilla/sphincter of Oddi
location of inferior part (~6-8cm) of the duodenum
- crosses L3
- inf to head and uncinate process of pancreas
the inferior part (~6-8cm) of the duodenum is ____ retroperitoneal
secondarily
location of ascending part (~5cm) of the duodenum
Left of L3, then rises to superior border of L2
the ascending part (~5cm) of the duodenum joins the jejunum at the ____
duodenojejunal flexure
what attaches the duodenum to the posterior abdominal wall?
suspensory ligament of duodenum (lig of Treitz)
arterial supply of duodenum
- celiac trunk branches
- gastroduodenal
- superior pancreaticoduodenal
- superior mesenteric
- inferior pancreaticoduodenal
inferior pancreaticoduodenal artery arises from the ____
superior mesenteric a
veins of the duodenum drain into the ___
portal v
lymph from the duodenum drains to celiac nodes via…
- anterior: pancreaticoduodenal & pyloric
- posterior: superior mesenteric
innervation of duodenum
- celiac & superior mesenteric plexus
- PSNS: vagus n
- SNS: greater & lesser splanchnic nn
What part of the duodenum is intraperitoneal?
Ampulla (first 2cm of superior part)
