Peritoneum, Chest and Invasive Procedures - Part 1

Question 1

Mesenteric cyst

Answer 1

A congenital thin-walled cyst located between the leaves of the mesentery

Question 2

Where is a mesenteric cyst most commonly located?

Answer 2

Small-bowel mesentery

Question 3

Paracentesis

Answer 3

A cannula or catheter is passed into the abdominal cavity to allow outflow of fluid into a collecting device for diagnostic or therapeutic purposes

Question 4

What does the peritoneum contain? (4)

Answer 4

1. Lymphatics
2. Vessels
3. Fat
4. Nerves

Question 5

Pouch of Douglas

Answer 5

A pouch formed by the inferior portion of the parietal peritoneum

Question 6

What are the functions of the peritoneum? (2)

Answer 6

1. Secretes serous fluid to reduce friction between structures
2. Suspends and enfolds organs

Question 7

What is the peritoneum?

Answer 7

An extensive serous membrane lining the entire abdominal wall

Question 8

What is the peritoneum composed of?

Answer 8

2 layers

Question 9

What are the 2 layers of the peritoneum?

Answer 9

1. Parietal
   - lines the cavity
2. Visceral
   - covers the organs

Question 10

Greater omentum

Answer 10

A transparent double fold of peritoneum that spreads like an apron inferiorly to cover most of the abdominopelvic cavity

Question 11

What does the greater omentum do in trauma cases? (2)

Answer 11

1. Seal hernias

2. Wall of infections

Question 12

What does the greater omentum do?

Answer 12

Keeps the small intestines warm

Question 13

What is another term for the lesser omentum?

Answer 13

Gastrohepatic omentum

Question 14

Lesser omentum

Answer 14

Membranous extension from the portal fissure to the diaphragm

Question 15

What are the organs contained within the peritoneum? (14)

Answer 15

1. Appendix
2. Cecum
3. Duodenal bulb
4. GB
5. Ileum
6. Jejunum
7. Liver
8. Ovaries
9. Sigmoid colon
10. Spleen
11. Stomach
12. Transverse colon
13. Upper 1/3rd of the rectum
14. Uterine body

Question 16

Where is the lesser sac located anterior to?

Answer 16

To the pancreas

Question 17

Where is the lesser sac located posterior to?

Answer 17

To the stomach

Question 18

What is the lesser sac located between? (2)

Answer 18

1. Diaphragm

2. Transverse colon

Question 19

What does the lesser sac communicate with?

Answer 19

With the subhepatic space through the foramen of Winslow

Question 20

What is another term for the lesser sac?

Answer 20

Omental Bursa

Question 21

What is another term for Morison’s Pouch?

Answer 21

Hepatorenal Pouch

Question 22

Where is Morison’s Pouch located? (2)

Answer 22

1. Superior and anterior to the right kidney

2. Posterior to the lateral portion of the right lobe of the liver

Question 23

Why is the hepatorenal pouch unable to communicate with the subphrenic space?

Answer 23

Because of the right coronary ligament (bare area)

Question 24

What does Morison’s Pouch communicate with?

Answer 24

With the right paracolic gutter

Question 25

What is the hepatorenal pouch a common site for?

Answer 25

Fluid to collect

Question 26

Where are the paracolic gutters located?

Answer 26

Lateral to the colon

Question 27

What do the paracolic gutters serve as?

Answer 27

Conduits for fluid between the deep pelvis and upper abdomen

Question 28

Which paracolic gutter is more shallow?

Answer 28

The left one

Question 29

Which paracolic gutter is the more common route of fluid extension due to less resistance?

Answer 29

The right one

Question 30

Where is the retrovesicle pouch located? (2)

Answer 30

1. Posterior to the urinary bladder

2. Anterior to the rectum

Question 31

Where is the retrouterine pouch located? (2)

Answer 31

1. Posterior to the uterus

2. Anterior to the rectum

Question 32

What are 2 other names for the retrouterine pouch?

Answer 32

1. Posterior cul de sac

2. Pouch of Douglas

Question 33

Where is the vesicouterine pouch located? (2)

Answer 33

1. Anterior to the uterus

2. Posterior to the urinary bladder

Question 34

What is another term for the vesicouterine pouch?

Answer 34

Anterior cul de sac

Question 35

Where is prevesical or retropubic space located? (2)

Answer 35

1. Anterior to the urinary bladder

2. Posterior to the symphysis pubis

Question 36

What is another term for prevesical or retropubic space?

Answer 36

Space of Retzius