Peritoneum, peritoneal cavity, and mesenteries Flashcards Preview

GI exam #1 > Peritoneum, peritoneal cavity, and mesenteries > Flashcards

Flashcards in Peritoneum, peritoneal cavity, and mesenteries Deck (42):
1

What are the organs of the forgegut?

stomach, liver, gallbladder, pancreas, spleen, up tot he 1st half of the duodenum

2

What are the organs of the midgut

2nd half of duodenyum to the 2/3 of transverse colon

3

Organs of the hindgut

distal 1/3 of transverse colon to the rectum

4

What are the blood main supplies to the foregut, mid, and hindgut?

Celiac trunk, SMA, and IMA

5

What makes up the ventral mesentery for the foregut?

Lesser omentum, falciform L., coronary triangular L.'s

6

What makes up the dorsal mesenter for the foregut?

Gastroplenic, splenorenal, and gastrocolic L.'s, greater omentum

7

dorsal mesentery for the midgut

mesointestine, mesoappendix, transverse mesocolon

8

dorsal mesentery for the hindgut

sigmoid mesocolon

9

What are the motor nerve supplies for each section of the GI tract (fore, mid, and hindgut)

Vagus, Vagus, Pelvic splanchnic N.

10

Which layer of peritoneum has pain fibers?

the parietal layer

11

What supplies blood to visceral peritoneum?

the same thing as whatever organ it is covering

12

What does intraperitoneal even mean?

it's covered on most sides by VISCERAL peritoneum
-suspended by mesentery from the body wall

13

What does retroperitoneal mean?

it's covered by parietal peritoneum on one side only

14

What are some primary retroperitoneal organs?

kidneys, ureters, adrenals, gonads, aorta, and IVC

15

secondary retroperitoneal organs

duodenum, pancreas, ascending and descending colon

16

What is the significance of THE mesentery?

it attaches the free small intestine to the posterior body wall

17

What does the omentum do in general?

attaches stomach to other things

18

which omentum contains the portal triad?

the lesser omentum

19

where does the lesser omentum develop from?

ventral mesogastrium

20

what are the 2 parts of the lesser omentum?

hepatogastric L. and hepatoduodenal L.
-remember that THERE ARE NERVES HERE!

21

Where does the greater omentum develop from?

dorsal mesogastrium

22

What are the 3 parts of the greater omentum?

gastrocolic, gastrophrenic, and gastrosplenic L.

23

What are the peritoneal ligaments

-associated with the liver
-coronary R. and Left triangular L.'s, Falciform ligament (with ligamentum teres hepatis on the end of it)

24

What are the superior and inferior duodenal folds formed by?

the inferior mesenteric vein posterior to peritoneum

25

What makes the median umbilical fold?

urachus, it's midline

26

What makes the medial umbilical fold?

medial umbilical ligaments
-obliterated umbilical a.

27

What makes the lateral umbilical fold?

inferior epigastric vessels (A. and V.)
-remember that this is what we use to determine whether and inguinal hernia is direct or indirect!

28

What is the falciform ligament?

a curved remnant of the ventral mesogastrium
-the ligamentum teres hepatis (round ligament of the liver) is in its lower free border

29

Where do we find the supravesical fossa?

between the median and medial umbilical folds
-site for rare supravesical hernias

30

Where is the medial inguinal fossa?

between the medial and lateral umbilical folds
-site for direct inguinal hernias
-inguinal triangle

31

Where is the lateral inguinal fossa?

lateral to the LATERAL umbilical folds
-site for indirect inguinal hernias

32

What is the peritoneal cavity?

a closed potential space b/w parietal and visceral layers of peritoneum
*clinically important because abscesses amy develop and excess fluid (ascites) will pool here

33

What is the greater sac of the peritoneal cavity divided into and what divides it

supracolic and infracolic regions
-colon and transverse mesocolon does the dividing

34

What are the 2 spaces in the inframesocolic region and what divides it?

divided my THE mesentery into right and elft infracolic spaces

35

where will intraperitoneal infection want to spread?

the inframesocolic region

36

within the inframesocolic region, what stops fluid from spreading superiorly?

the phrenicocolic ligament

37

through what structure do the great and lesser sacs communicate?

the epiploic foramen (of winslow)

38

what is anterior to the foramen of winslow?

the hepatoduodenal L.

39

What important thing dot he hepatoduodenal L. contain?

the portal triad

40

What is posterior to the foramen of winslow?

IVC and the diaphragm

41

What is superior to the foramen of winslow?

liver, the (caudate lobe)

42

What is inferior to the foramen of winslow?

the duodenum (1st part)