Liver + GI: Anatomy Flashcards Preview

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Flashcards in Liver + GI: Anatomy Deck (60):
1

Name the four parts of the duodenum

Superior (L1)
Descending (L1-L3)
Inferior (L3)
Ascending (L3-L2)

2

How long is the superior duodenum

5cm

3

What part of the duodenum is retroperitoneal

Last 2cm of superior duodenum

4

What part of the superior duodenum is extraperitoneal

First 3cm

5

How is the superior duodenum connected to the liver

By Hepatoduodenal ligament

6

What structure does the descending duodenum surround

The pancreatic Head

7

What major structure does the descending duodenum contain

The major duodenal papilla

8

What does the inferior duodenum lie behind

The superior mesenteric artery and veins

9

What happens at the junction between the ascending duodenum and the jejunum

We have suspensory muscles which relax to widen the flexure - aids movement of contents into the jejunum

10

Are the jejunum and ileum intra or retroperitoneal

Intraperitoneal

Makes them motile

11

What is the role of the ileocecal valve

Prveents reflux of material back into the ileum from the caecum

12

Jejunum vs Ileum

Jejunum is dark red - Ileum is light pink
Jejunum is thicker - Ileum has thinner walls
Jejunum has longer vasa recta - Ileum has shorter vasa recta

13

What artery supplies the descending duodenum

Gastroduodenal arteru

14

What artery supplies the duodenum distal to the major duodenal papilla

The pancreaticoduodenal artery

15

What is the pancreaticoduodenal artery a branch of

The superior mesenteric artery

16

How can I differentiate the ileum from the Jejunum

Ileum has peyer's patches
Jejunum has more plicae circularis

17

Where is meckel's Diverticulum found

An appendix like structure found on the ileum

18

What is Meckel's Diverticulum a remnant of

The vitelline duct

19

What are arcades

Looping parts of the superior mesenteric artery that then form the vasa recta

20

What is the difference in the arcades of the ileum and jejunum

The arcades are more numerous in the Ileum

21

What does the superior mesenteric vein join to

Splenic vein and then onto the portal vein

22

Are the ascending and descending colon intra or retroperitoneal

Retroperitoneal

23

Are the transverse, sigmoid colon intra or retroperitoneal

Intraperitoneal

24

What are the three layers of the muscularis propria of the intestines called and are these layers longitudinal or circular

Taenia Coli

They are longitudinal

25

When do the three layers of the Taenia coli fuse together

At the rectao-sigmoid junction

26

What are the inner circular muscle layers called

Haustrations

27

What are the epiploic appendices

Small pouches of peritoneum filled with fat and found along the colon

28

Is the epiploic appendix present in the rectum

No

29

What is the significance of the epiploic appendix

They mark where blood vessels penetrate the surface of the bowels to supply the mucosa and submucosa

30

Does the caecum has a mesentery

No

31

Does the caecum have taenia coli

Yes

32

What is the marginal artery of drummond

Where the middle colic artery of the superior mesenteric anastomoses with the left colic artery of the inferior mesenteric artery

33

What is the hind gut innervated by

Sacral nerves 2,3,4

34

At what level does the oesophagus pass through the diaphragm

T10

35

What structures pass through the diaphragm alongside the oesophagus

Vagal trunks, inferior oesophageal artery and veins

36

How does lymph drain from the small bowel

Moves into cisterns chill and into the thoracic duct

37

At what vertebral level does the abdominal aorta start at

T12

38

What does the inferior phrenic artery supply

The diaphragm

39

What level does the inferior phrenic artery branch off the abdominal aorta

T12

40

At what vertebral level does the superior mesenteric artery branch off at

L1

41

At what vertebral level is the superior mesenteric artery at

L1

42

At what level is the Middle suprarenal artery at

L1

43

At what level is the renal artery at

L1-L2

44

What artery branches off at L2

Gonadal Arteries

45

What artery comes off the abdominal aorta at L4

Middle sacral artery

46

Is the middle sacral artery paired or unpaired

Unpaired

47

How many pairs of lumbar arteries do we have?

4 pairs

48

What is the role of the lumbar arteries

Supply spinal cord and abdominal wall

49

What does the abdominal aorta branch off into

Left and right common iliac arteries

50

At what level does the inferior mesenteric artery branch off the abdominal aorta at?

L3

51

What plane of the body marks the bifurcation of the abdominal aorta

Intertubercular plane

52

What nerve supplies foregut pain

Greater splanchnic nerve

T5-9 gets the greater splanchnic nerve online

53

What nerve supplies hindgut pain

Lowest splanchnic nerve

T12

54

What nerve supplies midgut pain

Lesser splanchnic nerve

T10-11 stops us from getting to heaven

55

What is the superior epigastric artery a branch of

The internal thoracic artery

56

What is the inferior epigastric artery a branch of

The external iliac artery

57

What three tributaries join together to form the hepatic portal vein

- Inferior mesenteric vein
- Superior mesenteric vein
- Splenic vein

58

Name four organs found on the transpyloric plane of addison

Gastro-duodenal flexure
Pancrease
Gallbladder
Pylorus

59

Name two branches of the iliohypogastric nerve

Lateral cutaneous nerve

Anterior cutaneous nerve

60

What does the anterior cutaneous nerve supply

Hypogastric region