Abdominal Mesentaries and Vasculatures Flashcards
What structures do the foregut include?
the stomach, the first half of the duodenum, liver, gall bladder and pancreas
what structures do the midgut include?
the second half of the duodenum, jejunum, ileum, cecum, ascending colon and transverse colon
the hindgut which includes which three structures?
the descending and sigmoid colons and the rectum
what supplies the foregut?
the celiac trunk
what supplies the midgut?
the superior mesenteric artery
what supplies the hindgut?
inferior mesenteric artery
what is it called when there are two layers of serous membrane which enclose blood vessels, lymphatics and nerves traveling beteween the gut tube and body walls?
mesentary
the ventral mesentary of the foregut is called?
the ventral mesogastrium
what connects the stomach/duodenum to the liver
lesser omentum
what connects the liver to the ventral body wall
falciform ligament
what attaches, anchors and supports the gut tube to the posterior wall?
dorsal mesentery
what attaches the liver and gut tubes to the anterior wall
ventral mesentery
What are the two ventral mesentery derivatives?
the lesser omentum
falciform ligament
the lesser omentum has. two ligements, what are they? what do they connect?
hepatogastric ligament
- connects the liver to the superior (lesser) curvature of the stomach
hepatoduodenal ligament
-connects the liver to the duodenum
-contains vessels and structures associated with the liver
the falciform ligament does what? what does it contain?
anchors liver to the anterior abdominal wall
the falciform ligament
contains the obliterated umbilical vein- the round ligament of the liver
What are the four dorsal mesentery derivatives?
greater omentum
mesentery proper
transverse mesocolon
sigmoid mesocolon
the greater omentum connects what? how many layers does it have?
the greater omentum connects the inferior (greater) curvature of the stomach to the transverse colon
-it has 4 layers of visceral peritoneum because it folds back on its self.
the mesentery proper is associated with what? what does it enclose? how many layers does it have?
associated with the small intestine.
it encloses fat, vessels, lymphatics and nerves to the small intestine
2 layers
what mesentery is associated with the transverse and sigmoid parts of the colon
transverse and sigmoid mesocolon
why don’t the ascending and descending colon not have a mesentery
they became secondarily retroperitoneal as their dorsal mesenteries fused with the parietal peritoneum
The spleen develops within and subdivides?
the dorsal mesentery
what structures are in the right upper quadrant of the abdomen?
gallbladder, liver, duodenum
what structures are in the left upper quadrant of the abdomen
stomach and spleen
what structure is in the right lower lower quadrant
appendix