Duodenum Flashcards Preview

Anatomy Module 5 > Duodenum > Flashcards

Flashcards in Duodenum Deck (35):
0

First and shortest part of the small intestine, widest and most fixed part

Duodenum
- partially retroperitoneal
Begins: pylorus
Ends: duodenojejunal flexure

1

C shaped tube around the head of the pancreas - 25cm long

Duodenum
Mucous membrane - thick
First part - smooth

2

Circular folds in the duodenum

Plicae circulares

3

Primary site for absorption of nutrients from ingested materials

Duodenum

4

Parts of the duodenum

Superior
Descending
Horizontal
Ascending

5

Part of the superior duodenum that has a mesentery and is mobile

First 2 cm

6

Part of the superior duodenum that has no mesentery, retroperitoneal and is immobile

Distal 3 cm

7

Duodenal cap

Ampulla

8

Part of the duodenum that curves around the head of the pancreas - 7 to 10 cm. lies to the right and parallel to the IVC. Retroperitoneal

Descending part

9

Bile and main pancreatic ducts unite to form

Hepatopancreatic ampulla

10

Hepatopancreatic ampulla opens on and eminence called

Major duodenal papilla of Vater

11

Accessory pancreatic duct opens into the

Minor duodenal papilla

12

Part of the duodenum that runs transversely to the left - pass over IVC, aorta and L3

Horizontal/ inferior part

13

Horizontal part of the duodenum is crossed over by what surfaces

SMVessels and root of mesentery

14

Horizontal part of the duodenum passes over what surfaces

IVC
Aorta
L3

15

Part of the duodenum that runs superiorly along the left side of aorta - 5cm

Ascending part

16

Asc duodenum curves anteriorly to join the jejunum where

Duodenojejunal flexure

17

Duodenojejunal flexure is supported by what ligament

Ligament of treitz

18

Attachment of a suspensory muscle of duodenum

Ligament of treitz

19

Contraction of this widens the duodenojejunal flexure therefore allowing movements of intestinal contenta

Ligament of treitz

20

Blood supply of digestive tract: proximally, extending orad including abdominal part of esophagus

Celiac trunk

21

Blood supply of digestive tract: distally, extending aborad to L colic flexure

SMA

22

Anterior SUPERIOR pancreaticoduodenal artery is a branch of

Gastroduodenal a

23

Anterior INFERIOR pancreaticoduodenal artery is a branch of

SMA

24

Supplies duodenum PROXIMAL to entry of bile duct

Anterior SUPERIOR pancreaticoduodenal artery

25

Supplies duodenum DISTAL to entry of bile duct

Anterior INFERIOR pancreaticoduodenal artery

26

Blood supply of duodenum

Anterior and posterior of the superior and inferior pancreaticoduodenal artery

27

Venous drainage of duodenum

Superior and inferior pncreaticoduodenal vein

28

SUPERIOR pancreaticoduodenal vein drains to

Portal vein (direct drainage)

29

INFERIOR pancreaticoduodenal vein drains to

SMV (indirect blood flow - SMV and splenic)

30

Lymphatic drainage of duodenum

Ante LV - pancreaticoduodenal LN
Poste LV - SMV LN

31

Efferent LV from duodenal LN drain into

Celiac LN

32

Nerve supply of duodenum is derived from

Vagus
Greater and lesser splanchnic nerves
- by way of celiac and SM Plexus

33

Erosion of duodenal mucosa

Duodenal ulcer

34

65% of cases of ulcer occurs in what part of the duodenum

Superior part