Peritoneal Cavity – Part 2 – Ligaments of the Liver – Anatomy Tutorial

Peritoneal Cavity – Part 2 – Ligaments of the Liver – Anatomy Tutorial

Okay, so we’ve talked about a little bit of
the basics of the peritoneal cavity and the peritoneum and what the visceral and parietal
peritoneum are and the divisions of the actual cavity, so the greater and lesser sacs. So
now, we’ll just have a guided tour through the peritoneal cavity. We’ll start off at
the liver and look at some of the peritoneal attachments in a bit more detail. So I’ll
start at the top and we’ll work our way down. So the liver has various ligaments which attach
from its surface to the diaphragm and also to the anterior abdominal wall. These ligaments
aren’t like ligaments in joints which connect bones to bones. These ligaments are folds
of peritoneum and they anchor the liver into place. So the liver is this organ here in the right
upper quadrant of the abdomen. It sits just underneath the diaphragm like this. We’ll
just take a look at some of the peritoneal attachments of the liver. I’ll just isolate
it and I’ll show you some of the ligaments that we have. So we’re looking at the anterior surface of
the liver. We’ve got a ligament which separates the right from the left lobes. So this is
called the falciform ligament. I’m drawing this on in yellow. This runs up the middle
of the liver. This ligament attaches the liver to the anterior
abdominal wall. It attaches it to the inner surface of the rectus sheath. So it attaches
behind the rectus sheath as low as the level of the umbilicus. It’s a remnant of the umbilical
vein of the fetus. So in its base, at the base of this ligament,
the falciform ligament, in the free margin, you’ve got a ligament called the round ligament.
I’m drawing this little round ligament on in blue. That’s contained within the falciform
ligament in the free margin at the base of the falciform ligament. The round ligament
passes into the groove between the quadrate and left lobe. So remember, above the liver, you’ve got the
diaphragm. I’m drawing the diaphragm on here. This is the diaphragm in red. Reflecting off
the diaphragm, you’ve got folds of peritoneum. These folds of peritoneum reflect off the
inferior surface of the diaphragm and attach onto the liver. So you’ve got these reflections
from the inferior surface of the diaphragm which reflect onto the liver. So this ligament here is called the coronary
ligament. You’ve got upper and lower coronary ligaments. This one here is the upper coronary
ligament. You’ll be able to see the lower coronary ligament or posterior coronary ligament
on the posterior surface of the liver. So where the anterior and posterior coronary
ligament meet, you get the triangular ligament. You’ve get this triangular ligament at this
side. So this side is the left triangular ligament. And on the other side, you’ve got
the right triangular ligament where the upper and lower coronary ligaments meet. So what I’m going to do is show you a diagram
to make this a bit clearer than my silly scriblings. If we rotate the liver around, we’re going
to take a look at the superior surface of the liver. So imagine looking at this view. So we’re looking at the same view I just showed
you in the model. We’re looking superiorly at the liver. We’ve got the right lobe here,
the left lobe on this side, we’ve got the inferior vena cava posteriorly and you can
see the ligament that I drew on before. So you’ve got the falciform ligament coming
up here separating the right and left lobes. It goes off to attach to the anterior abdominal
wall. And then you’ve got the coronary ligaments which come down from the diaphragm. And then
you’ve got the left triangular ligament and right triangular ligament. So just coming back to this 3D model. We’re
looking at an anterior view here. What I’m going to do is we’re going to rotate it around
to the back and we’ll look at a diagram of this sort of posterior and inferior surfaces
of the liver. So we’re looking at the inferior and posterior
surface of the liver. You can see the coronary ligament here. This is a reflection of peritoneum
which attaches the diaphragm (the inferior surface of the diaphragm) to the liver. So you can see the coronary ligament here
running round. And then at the bottom, you can see this lower part. So this is the lower
part of the coronary ligament which you can see on the posterior surface. So this coronary ligament demarcates an area
of the liver, which is not peritoneal. So there is a bare area on the liver where there
is no peritoneum. This is called the bare area of the liver. This part of the liver
is in direct contact with the diaphragm. So the right triangular ligament is formed
in this lower extremity of the bare area of the liver where these two layers of the coronary
ligaments fuse and this right triangular ligament passes to the diaphragm. So the peritoneum covers the whole liver except
for this area (which I’m showing you) at the back of the liver called the bare area. The
majority of the liver is covered in peritoneum, which reflects off the diaphragm. And then you’ve got this fissure here, which
is called the fissure for the ligamentum venosum. So the ligamentum venosum is a fibrous remnant
of the ductus venosus. Just below it, just here on the side of the quadrate lobe, you
can see where the round ligament comes into the back of the liver. So remember, I showed
you the round ligament passing in the margin of the falciform ligament. It passes to the
posterior surface and runs along here. So from the ligamentum venosum and the porta
hepatis, you get the lesser omentum, which connects the liver to the lesser curve of
the stomach and to the first part of the duodenum. So the peritoneum which encloses the liver
meets to form this double layer of peritoneum at the porta hepatis. And it connects the
porta hepatis to the lesser curvature of the stomach and the first part of the duodenum.
So this is called the lesser omentum.

41 Replies to “Peritoneal Cavity – Part 2 – Ligaments of the Liver – Anatomy Tutorial”

  1. My anatomy teacher told us that the falciform ligament separates the lateral and medial parts of the left lobe. The real line of separation between the lobes lies approximately 2 cm to the right of the falciform ligament.

  2. Thank you very much for all your videos! Could you please adjust the settings so that there is an option to stream the videos at 1.5x and 2x for review purposes? I'm not sure how you would do that, but I would find it really helpful. Maybe someone else knows? Thanks again!

  3. thank you man , and i have a quastion for you please ,, i want the name of your program because it will help me to understand anatomy more ..

  4. @daleel lh here it's bro
    wish the best for you

  5. The bare area is not the only non-peritoneal area of the liver. There are other bare areas.. like the caridac impression on the superior surface, the groove for the inferior vena cava, fissure for the ligamentum venosum, teres hepatis, fossa for gall bladder, the porta hepatis etc

  6. This is Called Perfection.Wish All my University teachers wud be like you ..Well Nice Effort..U did dat in 8 minute video which my teachers cant did in 3 hours lectures..but please its a request that plz whenever u teach.tell us some clinical anatomy regarding dat topic:)

  7. Thank you very much! This has been very helpful. If only teachers can explain like that. Keep it up there arent very good videos in youtube either. And i have been trying to study and this was a GREAT help!

  8. You are the best man, at the university of Aberdeen we don't have any lectures so we are just expected to learn from a book with no help and your videos are a god sent.

  9. Am really grateful for ya for explaining all these concepts which our teachers complicate these simple concepts….would appreciate clinical aspects…

  10. What seperates the right and left lobes is the plane that runs from the inferior vena cava to the gallbladder fossa, not the falciform ligament. Otherwise, great videos.

  11. Falciform ligament is the remnant of umbilical vein…????

    I think it is ligamentum teres hepatis which is the remnant of umbilical vein.

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