TMA Coeliac trunk

Question 1

where does the coeliac trunk arise

Answer 1

the abdominal aorta

Question 2

which branch of the abdominal aorta is the coeliac trunk

Answer 2

2nd branch

Question 3

what is the first branch of the abdominal aorta

Answer 3

the piared inferior phrenic

Question 4

descirbe the journy of the coeliac trunk

Answer 4

Arises from the anterior aspect of the aorta, at T12

After emerging from the aorta, the coeliac trunk extends approximately 1cm before dividing into gastric L, splenic L and common hepatic arteries R

Question 5

what does the Left gastic supply

Answer 5

Stomach

Part of the oeophagus that is close by

Question 6

what does the Splenic supply

Answer 6

stomach
spleen
pancrease

Question 7

what does the hepatic supply

Answer 7

Stomach
dudodem
pancrease 
liver 
gallbladder

Question 8

which is the smalestl of the coeliac branches

Answer 8

the left gastic

Question 9

what is the path of the left gastric artery

Answer 9

starts from coeliac and Ascends across the diaphragm, giving rise to oesophageal branches,
Continuing anteriorly along the lesser curvature of the stomach
Anastomoses with the right gastric artery.

Question 10

what is the path of the splenic artery and what it is contained in

Answer 10

Arises from the coeliac trunk just inferior to the left gastric artery
travels left towards the spleen, running posterior to the stomach and along the superior margin of the pancreas.
During its course, it is contained within the splenorenal ligament.
Terminates into five branches which supply the segments of the spleen.

Question 11

In addition to supplying the spleen, the splenic artery also gives rise to several important vessels, what are these vessels and what do they supply?

Answer 11

Left gastroepiploic: supplies the greater curvature of the stomach.
Anastomoses with the right gastroepiploic artery.
Short gastrics: 5-7 small branches supplying the fundus of the stomach.
Pancreatic branches: supply the body and tail of the pancreas.

Question 12

what is the shape of the splenic artery

Answer 12

tortuous appearance (similar to the facial branch of the external carotid artery) and thus is easily identifiable from other nearby vessels.

Question 13

what is the only branch of the coeliac to pass to the right

Answer 13

the common hepatic artery

Question 14

where is the livers only blood supply from

Answer 14

the hepatic artery

Question 15

desribe the path of the common hepatic artery

Answer 15

passes right from the coeliac artery
travels past the superior aspect of the duodenum, it dividing into its two terminal branches – the proper hepatic and gastroduodenal arteries

Question 16

what do each of the branches of the common hepatic:the proper hepatic and the gastroduodenal arteties have in common

Answer 16

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

Question 17

desribe the pathes of the two branches of the common hepatic and what they in tern give rise to and detailing what they supply

Answer 17

Proper Hepatic

The proper hepatic artery ascends through the lesser omentum towards the liver. It gives rise to:

Right gastric: supplies the pylorus and lesser curvature of the stomach.
Right and left hepatic: divide inferior to the porta hepatis and supply their respective lobes of the liver.
Cystic: branch of the right hepatic artery – supplies the gall bladder.
Gastroduodenal

The gastroduodenal artery descends posterior to the superior portion of the duodenum. Its branches are:

Right gastroepiploic: supplies the greater curvature of the stomach. Found between the layers of the greater omentum, which it also supplies.
Superior pancreaticoduodenal: divides into an anterior and posterior branch, which supplies the head of the pancreas.

Question 18

The arrangement of the branches and the order from which they arise from the coeliac trunk can vary from person to person.detail some common variations

Answer 18

The left gastric artery often arises proximal to the bifurcation of the splenic and common hepatic arteries. This is called a false tripod.

The right gastric artery is occasionally seen as a branch of the common hepatic instead of the proper hepatic artery.

The right gastric and right hepatic arteries may arise from the SMA.

The left hepatic artery is sometimes seen as a branch of the left gastric artery.

The inferior phrenic arteries may arise from the coeliac trunk instead of the abdominal aorta

Question 19

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

Answer 19

the stomach

Question 20

how does the stomach receieve arteerial supply from all the branches of the coeliac trunk?

Answer 20

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

Question 21

what is the pacreaticoduodenal arcade

Answer 21

a network of arteries that surround and supply the head of the pancreas.

Question 22

what are the two main arteries of the pancreaticoduodenal archades, where did they originate and what type of strucure is the archade

Answer 22

There are two main arteries – each has an anterior and posterior branch, that anastomose (e.g. anterior to anterior) forming a ring structure:

Superior pancreaticoduodenal– a branch of the gastroduodenal artery.
Inferior pancreaticoduodenal – branch of superior mesenteric artery (SMA).