- potential space within peritoneal sac - small amount of serous fluid to lubricate movement of organs

Peritoneum and Upper Abdomen Flashcards by Calvin Lam

Parietal peritoneum

Lines inner abdominal wall

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Visceral peritoneum

Covers orgrans

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Retroperitoneal

organs behind the peritoneum

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What runs between peritoneal layers?

Vessels

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Peritoneal sac

all visceral and parietal peritoneal membranes

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Peritoneal cavity

potential space within peritoneal sac

- small amount of serous fluid to lubricate movement of organs

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Greater omentum attachment

greater curvature of stomach and transverse colon

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How many layers is the greater omentum? Why?

4 layers of peritoneum. Apron-like due to gastrcolic ligament

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Function of greater omentum

Walls off infections and inflammation sites

Results in formation of adhesions

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Lesser Omentum attachments

lesser curvature of stomach and duodenum

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Lesser omentum liver attachments

hepatogastric ligmanet

hepatoduodenal ligment

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Where is the portal triad? What is in it?

Hepatoduodenal ligament

Contains: hepatic a. portal v. bile duct

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Mesentery proper attachment

Anchors small intestine to posterior abdominal wall

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Path of mesentery proper

duodenjejunal jxn to ileocecal jxn

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Suspensory ligament of treitz

Prevents sagging of duodenojejunal jxn

Descends from R crus of diaphram and crosses over L crus.

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What is anchored by mesocolon

Transverse colon (transverse mesocolon)
sigmoid colon (sigmoid mesocolon)
NOT Ascending and descending colon

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Falciform ligament

Anchors liver to diaphragm and anterior body wall

Divides L and R liver

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What does falciform ligament contain?

Round ligament

- Obliterated umbilical vein

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Coronary ligament

Reflection of peritoneum around bare area of liver

Attaches liver to diaphragm

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Bare area

bare area of liver from coronary ligament

upper posterior of liver

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Median umbilical fold

from urinary bladder to umbilicus

covers median umbilical ligament

Medial umbilical folds

2
covers medial umbilical ligaments
occuded portions of umbilical aa

lateral umbilical folds

covers inferior epigastric vessels

What are peritoneal pouches?

Potential peritoneal spaces in standing patients

Become actual spaces in recumbent patients

Hepatorenal pouch (Pouch of Morrison)

Bound by liver, kidney, colon, and duodenum Lowest part of peritoneal cavity when recumbent Fluids move to retrovesical/retouterine pouch when reclined or sitting

Rectovesical/rectouterine pouch (males)

Between rectum and bladder Low point of peritoneal cavity when recumbent Fluids move to hepatorenal pouch when in trendelenburg position

Rectovesical/rectouterine pouch (females)

Between rectum and uterus Low point of peritoneal cavity when recumbent Fluids move to hepatorenal pouch when in trendelenburg position

gallblader attachment and contacts

Attachment: inferior surface of liver Contact: duodenum, colon, anterior abdominal wall

Gallbladder function

Receives biles from liver via bile ducts | Drains into duodenum via bile ducts

List the bile ducts

R and L bile ducts Common hepatic duct Cystic duct Common bile duct

R and L bile ducts

receives bile from R and L loves of liver

Common hepatic duct

Recieves R and L hepatic ducts

Cystic duct

connected to gall bladder

common bile duct

connect cystic and common hepatic duct

Bile duct drainage

Common bile duct meets pancreatic duct > major duodenal papilla > descending part of duodenum

Parts of pancreas

head, neck, body, tail, uncinate process

Location of pancreas

Retroperitoneal Transverse across posterior abdominal wall Surrounded by duodenum on R and spleen on L

Main pancreatic duct

Enters duodenum w/ bile duct at major duodenal papilla

Accessory pancreatic duct

Enters duodenum 2 cm to major papilla

Spleen location

Contacts diaphragm along ribs 9-11

What does the celiac trunk supply?

Liver, gallbladder, esophagus, stomach, pancreas, spleen

Branches of celiac trunk

common hepatic, L gastric, splenic aa

Common hepatic a. location and path

right branch of celiac trunk | towards liver and gallbladder

Branches of common hepatic a.

proper hepatic a | gastroduodenal a

Proper hepatic A. location and path

Superior branch of common hepatic a. Runs towards liver Medial to common bile duct Superficial to portal v.

What does proper hepatic a split to?

R and L hepatic aa | Supplies R and L lobes of liver

Gastroduodenal a. location and path

Inferior branch of common hepatic a | Runs towards junction of stomach and duodenum

Gastroduodenal branches

superior pancreaticoduodenal aa > pancreas/duodenum R gastroepiploic a > greater curvature of stomach supraduodedenal a > superior duodenum

L gastric A path

Superior branch of celiac trunk Runs L towards lesser curvature Supplies stomach and esophagus

Splenic A

L branch of celiac trunk Runs towards spleen supplies pancreas and spleen

Splenic A. branches

short gastric aa, L gastroepiploic a | Supply greater curvature of stomach

R. Gastric a

from proper hepatic May arise from common hepatic or gastroduodenal aa. Anastomoses with L. gastric a Supplies lesser curvature of stomach