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What is the Peritoneum?
The Serous Membrane (mesothelium) lining the Abdomen.
What lines the visceral organs?
What lines the walls?
Visceral organ lining: Visceral Peritoneum
Lining the walls: Parietal Peritoneum
(Some viscera are Intraperitoneal).
Some viscera are Interperitoneal, they possess a double layer of visceral peritoneum or Mesentary.
Name the mesentaries of each.
Jejunum and Ileum
- Liver: Falciform ligament
- Stomach: Greater & Lesser Omentum
- Jejunum & Ileum: Mesentary Proper (of S.I.)
- Transvrese Colon: Transverse Mesocolon
- Sigmoid Colon: Sigmoid Mesocolon
Viscera located outside (behind) the peritoneum = retroperitoneal.
Consists of what 6 parts?
- Ascending/Descending Colon
Arterial Supply to Digestive System.
Where do arterial supply to the esophagus come from?
1) Left Gastric artery to..
2) Common Hepatic Artery to..
3) Splenic Artery to..
Arteries from Descending (thoracic) Aorta.
Celiac trunk: first large artery off of the Abdominal Aorta.
- 1) lesser curvature of stomach.
- 2) to liver (splits to form Gastro-duodenal & Proper Hepatic)
- 3) to spllen & pancreas (gives off left Gastro-omental artery).
Arterial Supply to Digestive Organs (card 2)
Gastro-omental: greater curvature of the stomach.
Location: between stomach & greater omentum.
Gastro-duodenal arter: duodenum (gives off the Right gastro-omental)
Arterial Supply to Digestive Organs (card 3)
Proper Hepatic splits to form..(2)
..gives off the..
Left & Right Hepatic arteries =..
Proper Hepatic splits to form Left & Right Hepatic arteries.
Gives off the Right Gastric artery.
L & R Hepatic arteries = Left & Right lobes of Liver.
Cardiopulmonary & Portal Circulation.
(see p. 21 of LG digestive systems)
Arterial Supply to Digestive Organs (card 4)
Superior Mesenteric artery.. (2nd branch off of..)
-What organs does it supply? (5)
S. Mesenteric artery: 2nd branch off of the Abdominal Aorta.
- Supplies to:
- 1) S.I
- 2) Cecum
- 3) Vermiform appendix
- 4) Ascending Colon
- 5) Transverse Colon
Arterial Supply to Digestive Organs (card 5)
Inferior Mesenteric artery..most inferior branch off..
Supplies to what 3 organs
Most inferior branch off of the abdominal aorta.
- Supplies to:
- 1) Descending colon
- 2) Sigmoid Colon
- 3) Rectum.
Arterial Supply to Digestive Organs (card 6)
Lesser & greater curvatures of stomach have what kind of circulation?
The pancreas receives arteries off of what artery.
Anastomotic (collateral) circulation.
Pancreas receives arteries off of the Splenic artery.
Embryonic foregut. List the 5 parts to the Common Bile Duct.
- Embryo foregut:
- 1) stomach
- 2) liver
- 3) pancreas
- 4) spleen
- 5) duodenum
Duodenum distal to..(5) parts..
..to the Splenic Flexure
- Duodenum distal to:
- 1) common bile duct
- 2) remaining small intestine
- 3) cecum
- 4) ascending colon
- 5) transverse colong
- 1) descending colon (at splenic flexure)
- 2) sigmoid colon
- 3) rectum
Embryonic foregut, midgut, hindgut.
Foregut: arteries =
Midgut: artery =
Hindgut artery =
- Foregut: arteries = celiac trunk
- (esophagus through common bile duct.
- Midgut: artery = superior Mesenteric artery
- (common bile duct to Splenic Flexure)
- Hindgut: artery = inferior Mesenteric artery
- (Splenic Flexure through anus).