Peritoneal Cavity and Mesenteries Flashcards Preview

GI Midterm S'17 > Peritoneal Cavity and Mesenteries > Flashcards

Flashcards in Peritoneal Cavity and Mesenteries Deck (39):
1

Which layer of the peritoneum is sensitive to pain, pressure, and temperature?

The parietal peritoneum

2

Which layer of the peritoneum is sensitive to chemical irritation and stretch, including hypoxia?

The visceral peritoneum

3

What is the nerve, lymphatics, and blood supply of the parietal peritoneum?

It is derived from the structures it innervates

4

What are the two types of Retroperitoneal organs and how are they distinguished?

Primarily: Never had mesentery attached to them Secondarily: Later fused to the posterior body wall but originally had a mesentery surrounding them

5

What are the structures that are considered to be primarily retroperitoneal organs?

Aorta, Vena Cava, Kidneys, Suprarenal Glands, and Ureter (AVK=SU)

6

What are the structures that are considered to be Secondarily retroperitoneal organs?

2nd, 3rd, and 4th parts of the Duodenum, Pancreas (except for the tail), & Asecending and Descending Colon {234-PAD}

7

What is the composition of the Dorsal Mesentery?

Posterior body wall --> Stomach

8

What is the composition of the ventral mesentery?

Stomach to the liver

9

What is primarily responsible for the creation of the omental bursa (lesser sac)?

Omental bursa (lesser sac) is created via outpouching of the dorsal mesentery

10

What does the Splenorenal ligament comprise?

SPleen to the body wall; aka (lineorenal)

11

What does the Gastrosplenic ligament comprise?

SPleen to the stomach

12

What does the Lesser Omentum comprise?

Stomach to liver

13

What are the two components of the Lesser Omentum?

Hepatogastric: Liver to stomach Hepatduodenal: Liver to 1st part of the duodenum

14

What does the Falciform ligament comprise?

Liver to the anterior body wall

15

What is the connection between the lesser Sac and the Greater Sac?

Epiploic Foramen (Omental Foramen)

16

Where is the Portal Triad and what does it consist of?

1) Heptaduodenal Ligament (in the Lesser Omentum; stomach to the liver)

2) Proper Hepatic A., Bile Duct, and Portal V. (PBP)

17

In the Portal Triad; which structure is the most 1) posterior & 2) Medial?

1) Portal V. (Most Posterior)

2) Proper Hepatic A. (most medial)

18

What is the Anterior border of the Epiploic Foramen?

1) Hepatoduodenal ligament and portal triad

19

What is the posterior border of the Epiploic Foramen?

Inferior Vena Cava and Rt. Crus of the diaphragm

Crus of the diaphragm (is an X between the Aorta and Diaphragm)

20

What is the Superior border of the Epiploic Foramen?

Caudate lobe of the liver

21

What is the Inferior border of the Epiploic Foramen?

1st part of the duodenum

22

What is the lesser omentum comprised of?

1) Gastrohepatic Ligament and the Hepatoduodenal ligament (containing the portal triad)

23

What is the destination and origin of the Transversa Mesocolon?

1) Transverse colon to the posterior body wall

2) Other side is the Gastrocolic Ligament; Stomach to the colon

24

What is the Greater Omentum comprised of?

Gastrophrenic Ligament, Gastrosplenic Ligament, and Gastrocolic Ligament

25

What kind of rupture would result in the contents of the stomach being spilled into the lesser sac?

Posterior rupture

26

What is the preferred course of treatment for intesting the becomes lodged in the lesser sac?

Need decompression; as one cannot lacerate any of the surrounding tissues as they are vital

27

What are the two divisions that the transverso mesocolon divides the peritoneal cavity into?

Supracolic compartment and the infracolic compartment

28

What are the contents of the Supracolic compartment?

Stomach, Liver, Spleen

29

What are the contents of the infracolic compartments?

Small intestine, ascending and descending colon

30

What is the definition/ location of a Paracolic gutter?

Paracolic gutters are grooves between the lateral aspect of the ascending & descendingn colon and the posterior abdominal wall

31

What determines the positon of the right and left paracolic spaces?

The position of the mesentery and where it is

32

What is the deepest part of the Greater Sac in Men?

Rectoveiscular pouch (Between the rectum and the bladder)

33

What is the deepest part of the Greater Sac in Women?

Rectourine Pouch

34

Where might pus accumulate within the abdominal cavity in a patient who is laying down?

Right subphrenic Space

35

What is the definitoin of ascites?

Excess fluid in the peritoneal cavity

36

What is the tail of the pancreas considered as?

Intraperitoneal

37

What shoud be checked for on CT when there is cancer of the head of the pancreas found?

Check for compromise of the SMA (Superior Mesenteric Artery) & SMV (Superior Mesenteric V.)

2) Also, check for blockage of the common bile duct

38

What structures derive from the Hepatic portal V. ?>

Inferior Mesenteric V. --> SPlenic V. 

& Superior Mesentric V. 

39