Abdominal Vasculature and Lymphatics Flashcards Preview

SF4 Exam I > Abdominal Vasculature and Lymphatics > Flashcards

Flashcards in Abdominal Vasculature and Lymphatics Deck (55):
1

abdominal organs are supplied by what 3 unpaired branches off the abdominal aorta (name them)

Celiac Trunk (foregut)
Superior Mesenteric Artery (midgut)
Inferior Mesenteric Artery (hindgut)

2

what organs have dual blood supply and why?

duodenum (celiac trunk and superior mesenteric artery)
transverse colon (superior and inferior mesenteric arteries)
due to development in foregut-midgut and midgut-hindgut transitions

3

what organs are supplied by the celiac trunk?

esophagus
stomach
gallbladder
pancreas
duodenum

4

what organs are supplied by superior mesenteric artery?

duodenum
jejunum and ileum
cecum and appendix
ascending colon
hepatic (right colic) flexure
transverse colon

5

what organs are supplied by the inferior mesenteric artery

transverse colon
splenic (left colic) flexure
descending and sigmoid colons
rectum
anal canal (upper part)

6

Celiac Trunk originates at what level and what are its branches

originates at vertebral level T12
three major branches:
Left Gastric
Splenic
Common Hepatic

7

Superior Mesenteric Artery
(what does it supply, at what level does it originate, what is its course)

supplies midgut derivaties
originates at vertebral level L1
passes over 3rd part of duodenum and travels in mesentery

8

Superior Mesenteric Artery
(what are the major branches of the and what do they supply)

1. Inferior Pancreaticoduodenal- inferior pancreas and duodenum
2. Intestinal branches- jejunum and ileum
3. Middle Colic- transverse colon
4. Right Colic- ascending colon
5. Ileocolic- cecum (ilum-comon jucntion)

9

Inferior Mesenteric Artery
(what does it supply and at what level does it originate)

supplies hindgut derivatives
originates at vertebral level L3

10

Inferior Mesenteric Artery
(major branches and what they supply)

Left Colic- to descending colon
Sigmoid Branches- sigmoid colon
Superior Rectal- rectum

11

arterial anastomoses occur in the abdomen between what?

between celiac and superior mesenteric arteries
between superior and inferior mesenteric artery

12

what is the course of the anastomosis between celiac and superior mesenteric arteries

around the head of the pancreas via superior and inferior pancreaticoduodenal arteries

13

what is the course of the anastomosis betweensuperior and inferior mesenteric artery

near the left colic flexure through the Marginal Artery of Drummond

14

Marginal Artery of Drummond
(what is it, what forms it, what does it do)

its a continuous anastomosing arterial channel on the inner aspect of the large intestines
formed by branches of superior and inferior mesenteric arteries
provides communication between superior and inferior mesenteric alone entire margin of colon

15

what are the two drainage systems for the abdomen

portal system
caval system

16

The Portal System (drains blood from where to where)

blood from digestive organs and spleen
drains through liver before it is returned to IVC

17

Portal Vein (formed by what)

junction of splenic and superior mesenteric veins posterior to the neck of the pancreas
inferior mesenteric joins either splenic or superior mesenteric

18

Veins of Portal System do or do not have valves

veins or portal system DO NOT have valves

19

what is the main conduit to the liver?

portal vein

20

filtered blood from the liver is drained to the IVC via?

hepatic veins

21

Caval System (drains blood from where to where

blood from non-digestive organs (legs, body wall, urogenital, and reproductive systems)
drain directly into IVC

22

In cases where IVC is blocked how does blood return to the heart?

through Azygous System which are also connected to the caval system

23

Increased pressure in the portal system can lead to what?

portal hypertension b/c of no valves in portal system veins

24

portal hypertension may cause?

blood to back flow directly into the intestines or into the caval system though one of the four connections
can produce varicose veins in these areas

25

Name the 4 areas of Portal-Caval Anastomoses

Esophagus
Umbilicus
Rectum
Posterior Abdominal Wall

26

The Portal-Caval Anastomosis at the Esophagus (what is the portal system, caval system, and symptom involved with this area)

Portal System: Left Gastric
Caval System: Esophageal
Symptom: esophageal carices (hemorrhage may be fatal0

27

The Portal-Caval Anastomosis at the Umbilicus (what is the portal system, caval system, and symptom involved with this area)

Portal System: Paraumbilical
Caval System:Superficial Epigastric
Symptom: caput medusae

28

The Portal-Caval Anastomosis at the Rectum (what is the portal system, caval system, and symptom involved with this area)

Portal System: Superior Rectal
Caval System: Inferior Rectal
Symptom: internal hemorrhoids

29

The Portal-Caval Anastomosis at the Posterior Abdominal (what is the portal system, caval system, and symptom involved with this area)

Portal System: Colic Veins
Caval System: Retroperitoneal Veins
Symptom: Asymptomatic

30

The aortic bifurcation occurs at what vertebral level

L4

31

Splenic Artery (path and branches)

tortuous path from celiac trunk to spleen
multiple branches in pancreas
left gastroepiploic artery- branches close to spleen
short gastric arteries- to the fundus of stomach

32

Common Hepatic Artery (path and branches)

ends by dividing into: proper hepatic artery
gastroduodenal artery

33

Proper Hepatic Artery (branches)

Right Gastric- stomach (lesser curvature)
Left Hepatic- liver
Right Hepatic- liver
Cystic- gall bladder

34

Gastroduodenal Artery (branches and what they supply)

Supraduodenal
Superior-Pancreaticoduodenal- prancers and duodenu (superior part)
Right Gastroepiploic- stomach (greater omentum- greater curvature)

35

intestinal branches (from superior mesenteric) to jejunum and ileum form what?

arcades and vasa recta in the mesentery

36

lymph flow in the abdomen follows the path of what?

its blood vessels

37

What two regions of the abdomen is the lymph flow important and why?

testes and scrotum
superior and inferior half of anal canal
different patterns of blood supply and lymph drainages due to different developmental origin of the structures (despite anatomical proximity)

38

Lymph from the abdominal wall superior to the umbilicus is drained via what nodes?

anterior and posterior axillary nodes

39

Lymph from the abdominal wall inferior to the umbilicus is drained via what nodes?

superficial inguinal noes

40

Lymph from the testes (inguinal region) is drained via what nodes?

para-aortic (lumbar) nodes

41

Lymph from the scrotal skin and fascia (inguinal region) is drained via what nodes?

Superficial inguinal nodes

42

Lymph from the skin of the labia major (inguinal region) is drained via what nodes?

Superficial inguinal noes

43

Pre-aortic Nodes (what are they, what do they form)

lymph nodes located anterior to the abdominal aorta
drain lymph from GI Tract (except inferior anal canal)
form an intestinal trunk

44

Intestinal Trunk (formed from what and drains into what

formed from pre-aortic nodes
drains into the cistern chyli

45

Pre-aortic nodes (name them)

Celiac Nodes
Superior Mesenteric Nodes
Inferior Mesenteric Nodes

46

The lymph from the gastrointestinal tract is drained via what nodes (with what exception)

pre-aortic nodes (celiac, superior mesenteric, and inferior mesenteric
exception is anal canal

47

The lymph from the anal canal superior to the pectinate line drains via what nodes?

inferior mesenteric nodes

48

The lymph from the anal canal inferior to the pectinate line drains via what nodes?

superficial inguinal nodes

49

The lymph from the posterior abdomen drains into what nodes?

pre-aortic and para-aortic (lumbar) nodes

50

the cistern chyli marks what?

beginning of thoracic duct

51

the pre-aortic and para-aortic trunks come tother at a confluence called what?

cisterna chyli

52

what supplies blood to the stomach-duodenum junction

gastroduodenal artery

53

the left gastric artery ives what branches?

esophageal branches

54

there are arterial anastamosis around what parts of the stomach?

greater curvature (right and left gastroepiploic arteries)
lesser curvature (right and left gastric arteries)

55

another name for gastroepiploic artery

gastro-omental artery