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Abdo > coeliac trunk > Flashcards

coeliac trunk Flashcards

1
Q

what is the coeliac trunk a major artery of?

A

major artery of the abdomen

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2
Q

what does the coeliac trunk arise from?

A

abdominal aorta

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3
Q

what does the coeliac trunk supply?

A

many of the GI viscera

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4
Q

what is the coeliac trunk a branch of? which branch?

A

The coeliac trunk is the second branch of the abdominal aorta (the first branches are the paired inferior phrenic arteries).

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5
Q

what does the coeliac trunk arise from?

A

It arises from the anterior aspect of the aorta, at the aortic hiatus of the diaphragm (T12 level).

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6
Q

after emerging from the aorta, what happens to the coeliac trunk?

A

the coeliac trunk extends approximately 1cm before dividing into three major branches – left gastric, splenic and common hepatic arteries

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7
Q

which direction do the major branches (left gastric, splenic and common hepatic arteries) travel?

A

Of these branches, two go left and one goes to the right-hand side.

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8
Q

collectively, coeliac trunk and its major 3 branches all supply what?

A

they are the major arterial supply to the stomach, spleen, liver, gall bladder, abdominal oesophagus, pancreas and duodenum

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9
Q

which branch is the smallest of the 3 branches?

A

The left gastric artery is the smallest of the three branches

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10
Q

where does left gastric artery ascend from, give rise to and end up at?

A

It ascends across the diaphragm, giving rise to oesophageal branches, before continuing anteriorly along the lesser curvature of the stomach

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11
Q

what happens to the left gastric artery as it reaches the lesser curvature of the stomach?

A

it anastomoses with the right gastric artery

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12
Q

what does the splenic artery arise from?

A

from the coeliac trunk just inferior to the left gastric artery

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13
Q

where does the splenic artery travel towards?

A

the spleen, running posterior to the stomach and along the superior margin of the pancreas

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14
Q

during the course of the splenic artery, where is it contained within?

A

the splenorenal ligament

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15
Q

what does the splenic artery terminate into?

A

five branches which supply the segments of the spleen

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16
Q

in addition to supplying the spleen, which important vessels do the splenic artery also give rise to?

A

Left gastroepiploic
short gastrics
pancreatic branches

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17
Q

what does the left gastroepiploic supply?

A

supplies the greater curvature of the stomach

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18
Q

what does the gastroepiploic anastomose with?

A

right gastroepiploic artery

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19
Q

what does the short gastric artery supply?

A

5-7 small branches supplying the fundus of the stomach

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20
Q

what do the pancreatic branches of the splenic artery supply?

A

supply the body and tail of the pancreas

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21
Q

what sort of appearance does the splenic artery have, making it easily identifiable from other nearby vessels?

A

The splenic artery has a tortuous appearance (similar to the facial branch of the external carotid artery)

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22
Q

what does the common hepatic artery supply?

A

The common hepatic artery is the sole arterial supply to the liver

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23
Q

what is special about the common hepatic artery in terms of its course of travel as a branch of the coeliac artery?

A

the only branch of the coeliac artery to pass to the right

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24
Q

As the coeliac artery travels, what does it past?

A

past the superior aspect of the duodenum

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25
Q

what happens as the duodenum passes through the superior aspect of the duodenum?

A

it divides into its two terminal branches – the proper hepatic and gastroduodenal arteries

26
Q

what do the proper hepatic and gastroduodenal arteries both have?

A

Each of these arteries has multiple branches and variation in the arrangement of these branches is common

27
Q

what does the proper hepatic artery ascend through and where does it travel towards?

A

The proper hepatic artery ascends through the lesser omentum towards the liver

28
Q

what does the proper hepatic artery give rise to?

A

Right gastric
Right and left hepatic
Cystic

29
Q

what does the right gastric artery supply?

A

the pylorus and lesser curvature of the stomach

30
Q

what do the right and left hepatic arteries supply?

A

divide inferior to the porta hepatis and supply their respective lobes of the liver

31
Q

what is the cystic branch a branch of?

A

the right hepatic artery

32
Q

what does the cystic branch of right hepatic artery supply?

A

gall bladder

33
Q

where does the gastroduodenal artery descend posterior to?

A

superior portion of the duodenum

34
Q

what are the branhces of the gastroduodenal artery?

A

right gastroepiploic

superior pancreaticoduodenal

35
Q

what does the right gastroepiploic branch supply?

A

supplies the greater curvature of the stomach

36
Q

where is the right gastroepiploic branch found?

A

between the layers of the greater omentum, which it also supples

37
Q

what does the superior pancreaticoduodenal branch divide into?

A

anterior and posteiror branch

38
Q

what does the superior pancreaticoduodenal branch supply?

A

head of pancreas

39
Q

what is special about the blood supply of the stomach?

A

The stomach is the only organ to receive arterial supply from all three branches of the coeliac trunk

40
Q

how is the stomach’s blood supply achieved?

A

through a system of anastomoses along the greater (gastroepiploic arteries) and lesser (gastric arteries) curvatures

41
Q

what supplies the head of the pancreas?

A

The pancreaticoduodenal arcade is a network of arteries that surround and supply the head of the pancreas

42
Q

what are the 2 main arteries of the pancreaticoduodenal arcade?

A

superior pancreaticoduodenal

inferior pancreaticoduodenal

43
Q

what do each of the 2 main arteries have?

A

anterior and posterior branches which anastomose (e.g. anterior to anterior) forming a ring structure

44
Q

what is the superior pancreaticoduodenal artery a branch of?

A

a branch of the gastroduodenal artery

45
Q

what is the inferior pancreaticoduodenal artery a branch of?

A

branch of superior mesenteric artery (SMA)

46
Q

what do peptic ulcers in the stomach and duodenum have the potential to cause? when?

A

potential to cause significant gastrointestinal bleeding if they erode into neighbouring arteries

47
Q

which artery do peptic ulcers in the stomach and duodenum usually erode into?

A

gastroduodenal artery

48
Q

what is the Coeliac Trunk Compression Syndrome?

A

The median arcuate ligament occasionally lies anterior to the coeliac trunk, rather than its usual superior position.

49
Q

what is the median arcuate ligament?

A

the fibrous anchor of the diaphragm that forms the aortic hiatus

50
Q

what can coeliac trunk compression syndrome cause?

A

compression of the coeliac trunk that may present pathologically as pain

51
Q

what is the pain of coeliac trunk compression syndrome thought to be caused by?

A

the resulting ischaemia of the abdominal organs - though it also may be associated with compression of the coeliac ganglia

52
Q

what is the treatment of coeliac trunk compression syndrome?

A

the surgical division of the median arcuate ligament

53
Q

which abdominal vasculature is most likely to become aneurysmal?

A

the splenic artery is the third most likely to become aneurysmal (after the aorta and iliac arteries)

54
Q

what is treatment for Splenic Artery Aneurysm?

A

removal of the spleen (splenectomy), and often partial removal of the pancreas due to the splenic artery’s close relation

55
Q

where does the left gastric artery often arise from?

A

often arises proximal to the bifurcation of the splenic and common hepatic arteries

56
Q

what is the location where the left gastric artery often arises from called?

A

false tripod

57
Q

where is the right gastric artery occasionally seen as?

A

as a branch of the common hepatic instead of the proper hepatic artery

58
Q

where may the right gastric and right hepatic arteries arise from?

A

the SMA

59
Q

the left hepatic artery is sometimes seen as what?

A

seen as a branch of the left gastric artery

60
Q

the inferior phrenic arteries may arise from where instead of the abdominal aorta?

A

may arise from the coeliac trunk instead of the abdominal aorta

Abdo (50 decks)

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