Peritoneal Cavity

Question 1

What is the epiploic foramen?

Answer 1

Passage between the greater + lesser sac

-Opening to lesser sac (tent)-

Question 2

What B.V.’s does the Gastrophrenic L. contain?

Answer 2

Posterior gastric A.

Question 3

What B.V.’s does the splenorenal L. contain?

Answer 3

Splenic A.

Question 4

What B.V.’s does the gastrosplenic A. contain?

Answer 4

short gastric A. + left gastroomental A.

Question 5

What adult structures come from the ventral mesentary?

Answer 5

The lesser omentum (Hepatoduodenal L. + Hepatogastric L) and the Falciform L.

*Basically things surrounding liver*

Question 6

Why are pararectal spaces important?

Answer 6

Thats’s where you drain absesses (paracentesis) excess fluid in peritoneal cavity (want to drain @ most inferior point)

Question 7

Spleen Relationships

What artery is important for pancreatic cancer?

Answer 7

Superior mesenteric A. + V.

Question 8

How can the pancreas enter the lesser sac?

Answer 8

Anterior rupture

Question 9

What B.V.’s does the Gastrocolic L. contain?

Answer 9

Left + Right Gastroomental A.

Question 10

Deepest part fluid collects?

For men

For women

Answer 10

Rectovesicular

Rectouterine

Question 11

What arteries run through the transverse mesocolon?

Answer 11

Middle colic A. + Marginal A.

Question 12

What arteries run through the root of the mesentery?

Answer 12

Iliocolic A.

Question 13

What is the visceral peritoneum? Sensitive to? Where do their neurovascular supply come from?

Answer 13

1. Covers the organs 2. Sensitive to stretch + chemical irritation 3. Supplied by same nerves as organ

Question 14

How can stomach contents enter the lesser sac?

Answer 14

A posterior rupture. This is good cause the rupture is contained in the sac!

Question 15

What is the lesser sac also known as?

Answer 15

Omental bursa

Question 16

What is the lesser omentum?

Answer 16

The lesser omentum is the double layer of peritoneum that extends from the liver to the lesser curvature of the stomach

Question 17

What structures make up the greater omentum?

Answer 17

Gastrophrenic L. (diaphragm) + Gastrosplenic L + Gastrocolic L.

Question 18

What structures are retroperitoneal?

Answer 18

Suprarenal

Aorta/IVC

Duodenum (2,3,4)

Pancreas

Ureters

Colon (A+D)

Kidneys

Esophagus

Rectum

Question 19

What structures come from the dorsal mesentery?

Answer 19

Splenorenal L. + Gastrosplenic L.

*Basically covers the splen + stomach*

Question 20

What arteries run through the mesentery?

Answer 20

Ilio A. + Jujunal A. + Superior mesenteric A.

Question 21

What are paracolic gutters and why are they important?

Answer 21

The paracolic gutters are spaces between the colon and the abdominal wall. *Allow for free communication between compartents*

These gutters are clinically important because they allow a passage for infectious fluids from different compartments of the abdomen. For example; fluid from an infected appendix can track up the right paracolic gutter to the hepatorenal recess.

Question 22

What B.V.’s does the Hepatoduodenal L. contain?

Answer 22

Proper hepatic A.

Cystic A.

Right gastric A.

Question 23

Explain relationships of greater + lesser sac

Answer 23

Question 24

What is the greater ommentum?

Answer 24

Covers the small intestines like an apron (starts at greater curvature of stomach and goes down)

Question 25

What is the parietal peritoneum? Sensitive to? Where do their neurovascular supply come from?

Answer 25

1. Lines the body wall 2. Sensitive to pressure, pain, temp 3. Supplied by same nerves as region of wall it lines

Question 26

What is the pringle maneuver?

Answer 26

Put fingers in the epiploic foramen and compress the lesser sac

Question 27

What B.V.’s does the Hepatogastric L. contain?

Answer 27

Right + left gastric A.’s

Question 28

Intraperitoneal vs Retroperitoneal

Answer 28

Intraperiotneal: mostly covered w/ visceral periotneum (mesentery has 2 layers)

Attached to posterior body wall, but can move around

Retroperitoneal: only partially covered w/ peritoneum

Fused to posterior body wall + cannot move

Question 29

What ligaments make up the lesser omentum?

Answer 29

Gastrohepatic L. + Hepatoduodenal L. (containing portal triad)

Question 30

What arteries run through the sigmoid mesocolon?

Answer 30

Sigmoid A.