Peritoneum

Question 1

Organs of the foregut

Arteries that supplies them

Answer 1

Stomach, liver, GB, pancreas, spleen, 1st 1/2 of duodenum

Celiac trunk, splenic, L gastric, common hepatic

Question 2

Organs of the midgut

Arteries that supply them

Answer 2

2nd 1/2 of duodenum –> 1/2 of transverse colon

SMA, iliocolic, R. colic, middle colic

Question 3

Organs of the hindgut

Arteries that supply them

Answer 3

1/2 transverse colon –> rectum

L colic, sigmoid aa., superior rectal aa.

Question 4

Which layer of peritoneum has abundant pain fibers?

Which has none?

Answer 4

Parietal layer

Visceral

Question 5

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Nerves from the body wall supply ___ peritoneum

Rule about blood and lymph for visceral peritoneum

Answer 5

Parietal

Same as vessels and nodes that supply the organ within

Question 6

Visceral peritoneum and its nerves are sensitive to what?

Answer 6

Stretch and chemical irritation

Question 7

How does pain come across in parietal vs. visceral?

What does visceral pain feelings rely on?

Answer 7

Parietal = sharp and localized

Visceral = “referred pain” - poorly localized

Relies on spinal nerve affected and other dermatomal places supplied by it

Question 8

Acronym for retroperitoneal structures

What are they?

Answer 8

Suprarenal gland, aorta/IVC, duodenum (middle 2 parts), pancreas (except tail), ureters, colon (asc. and desc.), kidneys, esophagus, rectum

Question 9

The secondarily retroperitoneal organs mean what?

Same ones that ____

Answer 9

Became so during development

Are only partially retroperitoneal

Question 10

How do the uterine tubes help block organisms from entering the peritoneal cavity?

Answer 10

Can create a mucus plug within the tubes

Question 11

What is the mesentery?

Developed from what?

Answer 11

2-layered fold of peritoneum that attaches GI tract to posterior wall

Dorsal common mesentery of the embryo

Question 12

Transverse mesocolon

Answer 12

Mesentery of transverse colon fuses with posterior layer of greater omentum

Question 13

What happens for secondary retroperitoneal structures to become so?

Answer 13

Their mesocolons are lost when the structures fuse to the posterior body wall

Question 14

Lesser omentum develops from what?

2 parts

Answer 14

Ventral mesogastrium

Hepatogastric ligament
Hepatopancreatic ligament

Question 15

Greater omentum develops from what?

3 parts

Answer 15

Dorsal mesogastrium

Gastrocolic ligament
Gastrophrenic ligament
Gastrosplenic ligament

Question 16

Main purpose of the greater omentum

Answer 16

Attach the stomach to other visceral organs