In this lecture we are going to move onto
the peritoneum and the peritoneal sac.
So the peritoneum and the
peritoneal sac or the peritoneal cavity
is really important serous
membrane that lines the
inside of the abdominal cavity
and encloses the abdominal viscera.
It allows the organs within the
abdomen to move freely and smoothly.
And it's also important in suspending
and supporting these organs.
So we are going to look at the various
parts of the peritoneum and how it's divided
into visceral and parietal part.
We will look at retroperitoneal
and intraperitoneal organs.
And then we will move on and look at
mesenteries, peritoneal ligaments and the omenta.
Before finishing with the sub
divisions of the peritoneal cavity
like the greater sac and the lesser sac.
And how we can look infra
and supra colic compartments.
So previously in the lectures
that preceded this,
we have spoken about the organs really in
isolation and we put them into context with the
relationship they have with
other organs of the abdomen.
But this peritoneum is the membrane
that binds them all together
that attaches them to one-another
or attaches them to the body wall.
If this peritoneum didn't happen,
it didn't occur, it didn't exist
then what's to stop the stomach
from falling down into the pelvis?
The fact that the stomach is suspended
via the lesser omentum we will come to
know from the liver and it holds to the
spleen. And obviously it's anchored to
the oesophagus and the diaphragm.
It gives all of these organs their
position within the abdominal
cavity and that's what we
are going to look at today.