Where is the celiac artery
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
