the

Celiac Artery/Trunk - Part 1 - Anatomy Tutorial

okay so this is a toll on the celiac

artery so I'm going to talk you through

the various branches of the celiac

artery in this tutorial so I'm just

going to get rid of the venous system

and we'll just look at the look at the

arterial system and we'll focus in on

this celiac artery so we're looking now

just at the arterial system and we're

focusing on the abdominal section of the

aorta so the celiac trunk is the first

anterior branch of the abdominal aorta

which supplies the foregut structures so

it's just after the aorta perforates the

diaphragm at the level of the upper

border of the l1 vertebra so I've just

brought some other structures in for

reference and you can see the aorta

piercing the diaphragm and the celiac

trunk just after this point and this is

at the level of the upper border of

lumbar vertebra l1 so the celiac trunk

has three branches you've got the left

gastric branch which is this branch here

going upwards and then you've got the

splenic branch the splenic artery coming

off going towards the spleen to the left

and you've got the common hepatic artery

so those are the three branches that

come off the celiac trunk so the celiac

artery is for some reason on this model

it's in blue and I can't change that

unfortunately but it is it's meant to be

red here so just try and ignore that so

if i zoom in a little further you might

be wondering what these two little

arteries here are and these are actually

the inferior fennec arteries and their

origin is very variable so they can

arise above the celiac trunk or they can

arise from a common trunk either above

the origin of the celiac artery or from

the celiac artery itself so these are

the inferior fennec arteries which

supply the the diaphragm and they have a

very variable origin so ignore these for

this tutorial we're just going to focus

on the branches the left gastric this

lennick and the common hepatic artery so

now I'm just going to switch over to

some nice diagrams to illustrate the

branching of these branches so just to

orientate you a bit we've got we're

looking at the abdominal aorta as it's

just passed through the diaphragm and

we've got the celiac trunk coming off

immediately after that and you can see

it's three branches the left gastric the

splenic and the common hepatic to the

right we've got a dissected liver so

you've got a little bit of the left lobe

of the level up here and the gallbladder

is revealed because the livers been

pulled away on the Left we've got the

spleen and we've got the inferior vena

cava sitting to the right of the aorta

so first we'll talk about the left

gastric artery so we've got the celiac

trunk here and the first artery coming

off it is this artery called the left

gastric and this artery ascends and it

continues upwards here and gives off

esophageal branches to the distal part

of the esophagus and then you can see

how the artery then sharply curves

around like this and it runs along the

lesser curvature of the stomach and it

gives off these branches which supplied

the surface of the stomach so the left

gastric artery has gives off this little

branch here and you can see that it

anastomosis with another branch here so

the word Anasta Mo's just means joins

together so these this artery meets

another artery essentially which comes

off another part of the branch of the

celiac artery so this this is you could

probably guess the name of this artery

this is the right gastric artery and

this anastomosis with the left gastric

artery to form this nice little arc

which sits on the surface of the lesser

curvature of the stomach and the right

gastric artery comes off the common

hepatic artery or the proper hepatic r2

it's it's fairly variable in its origin

so fairly straightforward so far left

gastric artery is the smallest branch it

ascends upwards and gives off branches

esophageal branches which

supply the distal esophagus and then it

curves around on the lesser curvature of

the stomach and anastomosis with the

right gastric artery which comes off the

common hepatic artery which are common

to talk about so I've shown you the

vessels which come off and supply the

less occur run along the lesser

curvature of the stomach but you can

also see that there's some there's a

vessel here which runs along the greater

curvature of the stomach

so like the vessel which runs along the

lesser curvature this vessel is composed

of two vessels which in a stammers so

the first vessel I'm going to talk about

is the left gastroepiploic artery and

this comes off the splenic artery which

is the next branch of the celiac trunk

so what I'm going to do is we're going

to switch to another diagram now and

we're going to flip the stomach up so

just imagine we're going to take the

stomach and flip it over to the top and

we're going to look at the look at the

splenic artery and we'll be able to see

the pancreas below so we've just flipped

the stomach up and this is the posterior

surface of the stomach and just to

orientate again left gastric artery

coming off and you can see it's sharp

curve round with this branch that runs

along the lesser curvature and

estimating with the right gastric artery

coming off the common hepatic or the

proper hepatic and then we've got the

the splenic artery and it's got this

long tortuous course and you can see

this vessel given off called the left

gastroepiploic artery which is what we

saw in the previous diagram running

along the greater curvature so remember

this the stomach is flipped up so the

greater curvature is up here so just

like the the left gastric and the right

gastric artery which Anasta my on the

inferior curvature of the stomach the

left gastroepiploic artery anastomosis

with the right gastroepiploic artery

which comes off the gastroduodenal

branch which I'll talk about soon

hopefully it will all come together and

be clear so the splenic artery is the

largest branch of the celiac trunk and

you can see it's got this long tortuous

course and it runs along the top of the

pancreas and you can see these little

branches given off to the pancreas and

these little branches supply the neck

the body and the tail of the pancreas

the head has a different supply which

I'll show you in a moment so just before

the the splenic artery enters the hilum

of the spleen it gives off some short

vessels which are called the short

gastric arteries and these supply the

fundus of the stomach so you can see

these vessels coming off here and this

area of the stomach is the fundus so

we've got the splenic artery with its

branches supplying the neck the body and

the tail of the pancreas and then just

before enters the hilum of the spleen

we've got the short gastric arteries

which supply the fundus of the stomach

and then we've got this branch given off

called the left gastroepiploic artery

and this anastomosis with the right

gastric gastroepiploic artery and it

runs along the the greater curvature of

the stomach