106b anatomy of the abdomen Flashcards

1
Q

what forms the mesenteries?

A

splanchnopleure/visceral peritoneum

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2
Q

morphology of mesenteries?

A

simple squamous epi

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3
Q

in the embryo, where is the liver in relation to the stomach? the spleen?

A

liver and gall bladder is ventral

spleen is dorsal

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4
Q

which ventral mesenteries/lesser omentum break down? what does this form?

A

midgut and hindgut

greater peritoneal sac (abdominal cavity)

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5
Q

meckel’s diverticulum

A

blind sinus with all 3 gut wall laters (mucosa, submucosa, muscularis externa) that is attached to umbilicus via a fibrous cord

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6
Q

what forms the lesser peritoneal sac (aka omental bursa)?

A

dorsal mesentery/dorsal mesogastrium/greater omentum to the left as the stomach and liver rotates right

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7
Q

what is the communicaiton between the lesser and great sacs?

A

epiploic foramen of winslow

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8
Q

Falcifrom

1) connects
2) structures contained
3) notes

A

1) connects: liver and anterior ab wall
2) structures contained = ligamentum teres hepatis
3) notes - from ventral mesentery

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9
Q

hepatoduodenal

1) connects
2) structures contained
3) notes

A

1) connects = liver and duodenum
2) structures contained = portal triad (hepatic artery, portal vein, common bile duct)
3) notes = connects greater and lesser sacs; from lesser omentum

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10
Q

hepatogastic

1) connects
2) structures contained
3) notes

A

1) connects = liver and lesser curve of stomach
2) structures contained = gastric arteries
3) notes = seperates greater and lesser sacs on right, cut to access lesser sac; from lesser omentum

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11
Q

gastrocolic

1) connects
2) structures contained
3) notes

A

1) connects= greater curve and trasnverse colon
2) structures contained = gastroepiploic arteries
3) notes = part of greater omentum; adhesion

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12
Q

gastrosplenic

1) connects
2) structures contained
3) notes

A

1) connects= greater curve and spleen
2) structures contained
3) notes = seperates greater and less sac on left

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13
Q

splenorenal

1) connects
2) structures contained
3) notes

A

1) connects= spleen and posterior ab wall
2) structures contained= spelnic artery and vein; tail of pancreas
3) notes

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14
Q

what is formed from the ventral mesogastrium?

A

falciform ligament
coronoary ligament
lesser omentum (heptogastric and hepatoduodenal)

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15
Q

what is formed from the dorsal mesogastrium?

A

greater omentum
gastosplenic ligament
splenorenal ligament

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16
Q

what are the retroperitoneal structures? (These are superficial to the parietal peritoeneum)

A
SAD PUCKER
Suprarenal (adrenal) gland
Aorta and IVC
**Duodenum (2nd and 3rd parts)
**Pancreases (except tail)
Ureters + Bladder
**Colon (descending and ascending)
Kidneys
Esophagus (lower 2/3rds)
Rectum (lower 2/3rds)
**=secondarily retroperitoneal from fusion of greater omentum