So let's have a look.
We can see that running down
this internal iliac artery here
we have an anterior division
which we can mark out here
and we have a posterior division
which we can see here.
The anterior division and the posterior division.
Now these are going to give rise to numerous
parietal and visceral branches.
Parietal branches that will go and supply the body wall
and visceral branches that will supply the organs.
Its important to remember that
have these ovarian arteries.
And these arteries, remember, are coming from the aorta.
And although the ovaries are located within the pelvis,
these structures within the pelvis are
not supplied by the internal iliac.
They are supplied with the ovarian arteries. And these
run within the suspensory ligament that we have spoken
about and they originate
from the abdominal aorta.
As we will see, that maybe some anatomoses
with the uterine artery.
These arteries tend to be paired. We tend
to have both of them on the left side
and on the right side.
And also within the pelvis
we can have what are known as the unpaired
arteries. And these don't tend to come from
the internal iliac artery.
What we tend to have is a median sacral
artery and that's running directly down
from the aorta, so we have the median sacral artery.
We can see that running down in this direction.
The name median gives it
away that it?s an unpaired artery.
And we also have a superior rectal artery.
The superior rectal artery is the direction
continuous of the inferior
mesenteric artery into the pelvis.
It can divide into numerous branches that
will descend either side of the rectum,
and anastomose with middle and interior
rectal arteries, we will explore later.
But its primarily an unpaired artery that
comes from the inferior mesenteric.