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

Peritoneum, peritoneal cavity, and mesenteries Flashcards

1
Q

What are the organs of the forgegut?

A

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

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2
Q

What are the organs of the midgut

A

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

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3
Q

Organs of the hindgut

A

distal 1/3 of transverse colon to the rectum

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4
Q

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

A

Celiac trunk, SMA, and IMA

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5
Q

What makes up the ventral mesentery for the foregut?

A

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

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6
Q

What makes up the dorsal mesenter for the foregut?

A

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

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7
Q

dorsal mesentery for the midgut

A

mesointestine, mesoappendix, transverse mesocolon

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8
Q

dorsal mesentery for the hindgut

A

sigmoid mesocolon

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9
Q

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

A

Vagus, Vagus, Pelvic splanchnic N.

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10
Q

Which layer of peritoneum has pain fibers?

A

the parietal layer

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11
Q

What supplies blood to visceral peritoneum?

A

the same thing as whatever organ it is covering

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12
Q

What does intraperitoneal even mean?

A

it’s covered on most sides by VISCERAL peritoneum

-suspended by mesentery from the body wall

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13
Q

What does retroperitoneal mean?

A

it’s covered by parietal peritoneum on one side only

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14
Q

What are some primary retroperitoneal organs?

A

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

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15
Q

secondary retroperitoneal organs

A

duodenum, pancreas, ascending and descending colon

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16
Q

What is the significance of THE mesentery?

A

it attaches the free small intestine to the posterior body wall

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17
Q

What does the omentum do in general?

A

attaches stomach to other things

18
Q

which omentum contains the portal triad?

A

the lesser omentum

19
Q

where does the lesser omentum develop from?

A

ventral mesogastrium

20
Q

what are the 2 parts of the lesser omentum?

A

hepatogastric L. and hepatoduodenal L.

-remember that THERE ARE NERVES HERE!

21
Q

Where does the greater omentum develop from?

A

dorsal mesogastrium

22
Q

What are the 3 parts of the greater omentum?

A

gastrocolic, gastrophrenic, and gastrosplenic L.

23
Q

What are the peritoneal ligaments

A
  • associated with the liver

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

24
Q

What are the superior and inferior duodenal folds formed by?

A

the inferior mesenteric vein posterior to peritoneum

25
Q

What makes the median umbilical fold?

A

urachus, it’s midline

26
Q

What makes the medial umbilical fold?

A

medial umbilical ligaments

-obliterated umbilical a.

27
Q

What makes the lateral umbilical fold?

A

inferior epigastric vessels (A. and V.)

-remember that this is what we use to determine whether and inguinal hernia is direct or indirect!

28
Q

What is the falciform ligament?

A

a curved remnant of the ventral mesogastrium

-the ligamentum teres hepatis (round ligament of the liver) is in its lower free border

29
Q

Where do we find the supravesical fossa?

A

between the median and medial umbilical folds

-site for rare supravesical hernias

30
Q

Where is the medial inguinal fossa?

A

between the medial and lateral umbilical folds

  • site for direct inguinal hernias
  • inguinal triangle
31
Q

Where is the lateral inguinal fossa?

A

lateral to the LATERAL umbilical folds

-site for indirect inguinal hernias

32
Q

What is the peritoneal cavity?

A

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
Q

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

A

supracolic and infracolic regions

-colon and transverse mesocolon does the dividing

34
Q

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

A

divided my THE mesentery into right and elft infracolic spaces

35
Q

where will intraperitoneal infection want to spread?

A

the inframesocolic region

36
Q

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

A

the phrenicocolic ligament

37
Q

through what structure do the great and lesser sacs communicate?

A

the epiploic foramen (of winslow)

38
Q

what is anterior to the foramen of winslow?

A

the hepatoduodenal L.

39
Q

What important thing dot he hepatoduodenal L. contain?

A

the portal triad

40
Q

What is posterior to the foramen of winslow?

A

IVC and the diaphragm

41
Q

What is superior to the foramen of winslow?

A

liver, the (caudate lobe)

42
Q

What is inferior to the foramen of winslow?

A

the duodenum (1st part)

GI exam #1 (9 decks)

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