Peritoneum & Upper Abdomen Viscera Flashcards Preview

Anatomy 6512 > Peritoneum & Upper Abdomen Viscera > Flashcards

Flashcards in Peritoneum & Upper Abdomen Viscera Deck (47)
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1

What does splanchnic mean?

related to the viscera

2

What does hepatic mean?

associated with liver

3

What does cystic mean?

associated with gallbladder

4

What does pancreatic mean?

associated with pancreas

5

What does splenic mean?

associated with spleen

6

What does gastric mean?

associated with stomach

7

What does colic mean?

associated with the colon

8

What does recto mean?

associated with the rectum

9

What does phrenic mean?

associated with diaphragm

10

What is the peritoneum?

Thin, translucent, serous membrane

11

Where is the parietal peritoneum?

lines inner abd. wall

12

Where is the visceral peritoneum?

covers organs

13

Organs behind the peritoneum are called ...

retroperitoneal

14

True or false: vessels tend to travel between the peritoneal layers

True

15

What makes up the peritoneal sac?

all visceral & parietal peritoneal membranes

16

What is the peritoneal cavity?

- a potential space within sac
- contains only a small amount of serous fluid
- allow organs to move freely without friction

17

What are Marked Ascites & umbilical herniation?

- The potential space of the peritoneal cavity can become an actual space

- May contain up to several liters of fluid (ascites)

- Disease, injury or infection can lead to pooling of fluids (blood, bile, pus, feces)

18

What are the Double layered Peritoneal Folds & Ligaments?

1) Greater Omentum
2) Lesser Omentum
3) Mesentery Proper
4) Suspensory Ligament of Treitz
5) Mesocolon
6) Falciform Ligament
7) Coronary Ligament

19

Where is the Greater Omentum?

- attaches to greater curvature of stomach and transverse colon
- Drapes over small intestines like an ‘apron’
- ‘Apron’ = gastrocolic ligament
*4 layers of peritoneum

- functionally it can wall off infections & inflammation sites
- results in formation of adhesions

20

What is the Lesser Omentum?

- attaches to lesser curvature of stomach and duodenum
- 2 portions connect these structures to the liver
- Hepatogastric ligament
* connects liver to stomach
- Hepatoduodenal ligament
*connects liver to duodenum
*Contains the portal triad

Portal Triad = hepatic a., portal v., & bile duct

21

What is the Mesentery Proper?

- Anchors most of the small intestine to posterior abd. wall
- Runs diagonally from duodenojejunal jxn. to ileocecal jxn.
*a distance = 15 to 20 cm in adults

- Note: duodenum anchored by suspensory ligament of Treitz

22

What is the Suspensory Ligament of Treitz?

- Fibromuscular ligament descends from the R. crus of diaphragm
- Crosses over L. crus & holds distal duodenum in place
- Prevents duodenojejunal jxn. from sagging

23

What is the Mesocolon?

- Anchors portions of the colon to the posterior abdominal wall
- Ascending & Descending colon have no mesentery
* attached directly to the posterior wall
- Transverse Colon anchored by transverse mesocolon
- Sigmoid colon anchored by sigmoid mesocolon
- Rectum only partially covered with peritoneum

24

What is the Falciform Ligament?

- Divides liver into R & L lobes
- Anchors liver to diaphragm & anterior body wall
- Round ligament of the liver

*Note: inferior border contains the obliterated umbilical vein.

25

What is the Coronary Ligament?

- Reflections of peritoneum around the bare area of the liver
- Attach liver to inferior surface of diaphragm
- bare area = upper posterior liver

26

What are the Single Layered Peritoneal Folds?

1 median umbilical fold
covers fetal urachus

2 medial umbilical folds
covers fetal umbilical aa.

2 lateral umbilical folds
covers inferior epigastric vessels

27

What are the Infraumbilical peritoneal folds?

median umbilical fold
- from urinary bladder to umbilicus
- covers median umbilical ligament

medial umbilical folds (2)
- covers medial umbilical ligaments
- occuded portions of umbilical aa.

lateral umbilical folds (2)
- covers inferior epigastric vessels

28

What are Peritoneal Pouches?

- Potential peritoneal spaces in standing patients

- Becomes actual spaces in recumbent patients
* Hepatorenal pouch
* Rectovesical or retrouterine pouch

- Pathological fluids can accumulate in these recesses

29

What is the Hepatorenal pouch (Pouch of Morrison)?

- Bounded by liver, R kidney, colon & duodenum
* lowest part of peritoneal cavity when recumbent

- fluids may move down to retrovesical/rectouterine pouch – when in reclining position or sitting up

30

What is the Rectovesical pouch?

- Between rectum & bladder (♂)
* another low point of peritoneal cavity when recumbent
* fluids here may move up to hepatorenal pouch – when in Trendelenburg position