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Stack #36576

Abdomen 2

Omental Foramen boundary- anterior portal v., hepatic a., bile duct
Omental foramen boundary -posterior interior vena cava
Omenatl foramen boundary-superior caudate lobe of liver
omental foramen boundary-inferior superior aspect of 1st part of duodenum
Esophagus passes through esophageal hiatus in diaphragm at T10, joins stomach at T11
Diaphragm around hiatus - forms physiological sphincter
physiological sphincter prevents gastroesophageal reflux
upper 1/3 under conscious control
middle 1/3 mixid
inferior 1/3 under autonomic control exclusively
vagus n. forms plexus on esophagus & passes w/it through esophageal hiatus into abdomen
L. gastric a. from celiac trunk
R. gastric a. from hepatic a.
R. gastro-omental from gastroduodenal
L. gastro-omental from splenic
Short gastric from splenic
Duodenum 4 parts
part 1, Duodenum horizontal at L1 - peritonealized
part 2, Duodenum vertical from L1-L3, retroperitoneal, contains ampulla for bile/pancreatic duct
part 3, Duodenum horizontal at L3, retroperitoneal
part 4, Duodenum curves forward & becomes peritonealized at L2
Jejunum & Ilium Peritonealized in "the mesentery"
Jejunum more vascular, more prominent vasa recta & more circular folds (plicae circulares for absorption)
Cecum & appendix intraperitoneal
ascending colon retroperitoneal
transverse colon intraperitoneal
descending colon retroperitoneal
sigmoid colon intraperitoneal
tenia coli longitudinal muscular bands
haustra pouch like sacculations
Celiac trunk level T12
Celiac trunk branches L. gastric, splenic, common hepatic
Celiac trunk supplies esophagus, stomach, spleen, liver, gallbladder, part of duodenum, part of pancreas
Superior Mesenteric A. level L1
Superior Mesenteric A. branches jejunal, ileal, ileocolic, r. colic, middle colic
Superior Mesenteric A. supplies uncinate process of pancreas, jejunum, ilium, cecum, appendix, ascending colon, most of transverse colon
Inferior Mesenteric A. level L3
Inferior Mesenteric A. branches L. colic, sigmoid, superior rectal
Inferior Mesenter A. supplies distal end of transverse colon, descending colon, sigmoid colon, rectum
Inferior Mesenteric V. drains into splenic v.
Splenic & superior mesenteric vv. join to form hepatic portal v.
L. gastric v. drains into portal v.
Sympathetics-Celiac trunk Greater splanchnic n. T5-T9
Sympathetics-Superior Mesenteric A. Lesser splanchnic n. T10-T11
Sympathetics-Inferior Mesenteric A. Lumbar Splanchnic nn. L1-L2
Parasympathetics blood leaving aorta above L2 Vagus n.
Parasympathetics-blood leaving aorta below L2 Pelvic splanchnic nn. (S2-S4)
Spleen on L. side opposite ribs 9-11
Spleen supported by phrenicocolic ligament
Spleen rupture causes severe intraperitoneal hemorrhage
Major site of stress-induced immune suppresssion spleen
Spleen becomes enlarged with monnucleosis & portal hypertension
Pancreas retroperitoneal except tip of tail
Pancreas forms bed of stomach posterior to omental bursa
main pancreatic duct joins common bile duct, accessory duct is present sometimes
abdominal impact results in rupture against verterbral column
duct damage results in auto-digestion
Pancreatitis results from blockage of ducts (gallstones), excessive alcohol consumption, medications
Liver #___ Lobes 4
Lobes of liver right, left, caudate, quadrate
Liver recieves blood from hepatic artery & portal v.
Liver drains into inferior vena cava
Liver toxicity alcohol, acetominophen, antifreeze
Liver disease cirrhosis
Liver - a lot of matastases because organs which drain through poral vein
R. & L. hepatic ducts join to form common hepatic duct
Common hepatic duct joins cystic duct to form common bile duct
cystic duct has spiral configuration - serves as valve
Gallbladder in costal margin at midclavicular line
Gallstones block duct causing pain (following high lipid meal)
Gallbladder innervation celiac plexus - receive sensory afferents from R. Phrenic n. perceived in C3-C5 dermatomes
Esophageal & azygos vv. esophageal varices
Superior & inferiro rectal vv. hemorrhoids
paraumbilical vv. to anterior abdominal wall caput medusae
Created by: JYarger