Organs of the GI tract Flashcards Preview

GI exam #1 > Organs of the GI tract > Flashcards

Flashcards in Organs of the GI tract Deck (41):
1

What is the trick for remembering what pierces the diaphragm at certain vertebral levels?

I 8 10 Eggs At 12
-IVC at T8, Esophagus at T10, and Aorta at T12

2

What is a sliding hiatal hernia

where the abdominal esophagus and parts of the stomach herniate into the thorax
-esphageal hiatus either enlarges or weakens

3

What is a paraeophageal hiatal hernia?

a defect in the diaphragm next to the esophageal hiatus
-permits fundus of stomach to herniate

4

At what vertebral level is the stomach fixed?

left end is at T10-11 and the right side is at L1-2

5

Which parts of the duodenum are secondarily retroperitoneal?

the middle 2.... 2nd and 3rd

6

What is the first part of the duodenum surrounded by?

the hepatoduodenal ligament

7

Where does the root of THE mesentery begin?

the duodeno-jejunal flexure

8

What are the 4 parts of the duodenum?

Superior, descending, horizontal, and ascending

9

What important thing is behind the superior part of the Duodenum?

the portal triad

10

Where do the bile and pancreatic ducts enter into the duodenum?

The 2nd part
-makes the major duodenal papilla on the inside of it

11

What crosses the anterior of the horizontal duodenum?

SMA and SMV

12

Is the second part intra or retroperitoneal?

it is ALL retroperitoneal

13

What holds the 4th part (ascending) of the duodenum in place?

the suspensory ligament of the duodenum
-anchors the 4th part of the duodenum to the right crus of the diaphragm

14

what holds the jejunum and the ileum to the posterior abdominal wall?

THE mesentery
-remember that this part of the Small intestine is a lot more mobile

15

Which part of the Small intestine is more vascularized (long vasa recta and simple arcades) and has more plicae circulares?

the jejunum

16

Which part of small intestine has fewer plicae circulares, complex arcades and short vasa recta?

the ileum

17

What is meckel's diverticulum?

A remnant of the vitelline duct
-arises from antimesenteric border of the ileum
-it is just a thing that juts out from the ileum
-2% of population, 2 feet from ileocecal junction, and about 2 inches long

18

What is the function of haustrae?

to slow the movement of feces

19

what are the taenia coli and where do they converge?

3 bands of longitudinal muscle on the outside of the colon
-converge at the root of the appendix

20

what is the ileal papilla

a cone-like projection from the ileum into the cecum

21

Where is the opening for the appendix?

inferior to the ileal papilla

22

Which part of the colon is intraperitoneal?

the transverse and sigmoid part

23

Which part of the colon is retroperitoneal?

the ascending and descending part

24

what is the anorectal line?

a line joining the tops of the anal columns

25

what is the rectal ampulla?

the dilated terminal part of the rectum
-puborectalis muscle is in there

26

what is the pectinate line?

a line joining the inferior ends of the anal valves

27

What primary embryologic layer does the spleen develop from?

the mesoderm

28

What ligaments are attached to the spleen?

gastrosplenic and splenorenal

29

What are the parts of the pancreas from right to left on the body?

head, neck, body, and tail
-the tail is against the spleen

30

Where does the pancreas develop from?

a ventral bud in the ventral mesentery and a larger dorsal bud in the dorsal mesentery
-rotation of the stomach and duodenum brings the two buds together

31

What is the falciform ligament?

a double layer of peritoneum that connects the liver to the anterior wall

32

What defines the bare area of the liver?

the anterior, posterior, right , and left coronary ligaments

33

between what two lobes does the ligamentum venosum run?

between the left and caudate lobes

34

What is the porta hepatis?

a transverse fissure between the caudate and quadrate lobes
-transmits the portal triad

35

What are the contents of the portal triad?

proper hepatic A.
portal V.
Bile duct

36

What did the ligamentum teres used to be?

an umbilical vein (left? maybe)

37

what did the ligamentum venosum used to be?

the ductus venosus

38

What makes up the lesser omentum and connects the liver to the stomach?

hepatoduodenal and hepatogastric ligaments

39

Describe the extrahepatic bile passage

right and left hepatic duct come together to make the common hepatic duct... this joins the cystic duct from the gallbladder to make the common bile duct

40

Which ligament does the bile duct run in?

the hepatoduodenal L.

41

Where does the bile duct enter the duodenum at?

the 2nd part of the duodenum along with the pancreatic duct to make the major duodenal pailla on the inside of the intestine and that ampulla thing on the outside