 My name is Dr. Sanjeev Sanyal, Professor Department Chair. Let me tell you quickly something about the folds of peritoneum. This fold of peritoneum, part of which has been cut away, which is attached to the fundus, to the intra-abdominal part of the esophagus, and to the beginning of the greater curvature of the stomach. This is the gastro-splinic ligament, because the screen is located here. This double fold of peritoneum that is attached to the greater curvature of the stomach, which has been incised here, is the gastrocolic ligament part of the greater momentum. So extending from the greater curvature of the stomach to the transverse colon, which is here. This portion is the gastrocolic ligament, and the portion below that is the greater momentum proper, which hangs like an apron in front of the abdominal contents. By incising the gastrocolic ligament, we have in effect entered a space behind the stomach. And this space behind the stomach is the omental bursa or the lesser sac. And the structures behind the omental bursa or the lesser sac are the contents of the pet of the stomach. So this is a route for surgical access to the lesser sac by incising the gastrocolic ligament. This thin fold of peritoneum that we see here, which was attached to the lesser curvature of the stomach and extending from the lesser curvature to the liver, this is the hepatogastric or the gastro-hepatic part of the lesser momentum, which has been cut here and has been reflected out. My finger has gone into this space here. This is the epiploic foramen or the foramen of Winslow. So structures in front of my finger are the structures which are in the hepatodural ligament. The structures behind my hand are the posterior boundary of the foramen of Winslow, and they are composed of the inferior vena cava and the right supra-real gland. The structure above my finger is the liver, and the structure below my finger is the first inch of the first part of the diurnum. So these are the boundaries of the epiploic foramen or the omental foramen, Winslow. And now my finger has gone into this space here. This space was covered by the lesser momentum, part of which has been preserved here. It was covered like this, and this space is the omental bursa or the lesser sac, which extends not only behind the lesser momentum, but it also goes behind the stomach. Apart from the first inch of the first part of the diurnum, which is enclosed within the hepatodurnal ligament, the rest of the diurnum is retroperitoneal till it reaches the gigenum, and after that the gigenum becomes intrapetitoneal. So this whole portion of the diurnum is retroperitoneal, and it was stuck to the posterior abdominal wall from which it has been separated. So these are the peritoneal attachments and reflections of the isophagus, stomach, and diurnum. This time I'm going to demonstrate the blood vessels of the isophagus, stomach, and diurnum. So this artery and the vein, which is running along the lesser curvature from left to right, this is the left gastric artery. The left gastric artery is the smallest branch of the celiac trunk. This artery that we see here, it is coming from the hepatic artery proper. This is the right gastric artery. This also runs in the lesser curvature from the right to the left, and both of them anastomous here. And these two vessels run within the layers of the lesser momentum which has been removed and which was attached here. Now let's take the other vessels of the stomach. You can see some blood vessels in this fold of peritoneum here. These are all branches of the splenic artery. Some of them are very small vessels and they are called the vasabrivia. And they all run in the gastro-splenic ligament. Gastro-splenic ligament extends from the harness in the greater curvature of the stomach to the spleen. Now let me draw your attention to another important artery. This is the common hepatic artery. This is the second largest artery of the celiac trunk. The common hepatic artery, as it runs to the right, it moves up towards the liver and it makes a bend. At the point where it makes a bend, it gives off a very big branch and this branch is the gastro-diurnal artery. After it gives off the gastro-diurnal artery, the common hepatic artery is known as the hepatic artery proper. And emerging from the hepatic artery proper is the right gastric artery which we have already described. Let's take a look at the gastro-diurnal artery. The gastro-diurnal artery runs behind the first part of the diurnum and here there is an important clinical correlation. The first inch of the first part of the diurnum, as I mentioned, is the common site of the diurnal ulcer. And a posterior perforation of the diurnal ulcer can perforate into the gastro-diurnal artery leading to intractable hematomasis, that is vomiting of blood. The gastro-diurnal artery, as it goes behind, it divides into two major branches. We can see one major branch here. This is the epiploic artery or the gastro-oimental artery. This runs in the layers of the gastro-coalic ligament or the greater momentum. It runs from right to left. It runs along the greater curvature and it gives branches to the stomach and it gives branches to the greater momentum. This is the right gastro-epiploic. And as it continues, it anastomosis with this artery that we see here. This is the left astro-epiploic artery or the left gastro-oimental artery. This is a branch of the splenic artery. So we have the left gastro-epiploic or the gastro-oimental artery coming from the left side and we have the right gastro-epiploic coming from the right side and both of them anastomosis and they run in the greater curvature of the stomach. Now, let's take a look at the next branch of the great gastro-diurnal artery and that is this artery that we see here. This is the superior pancreatic odenal artery. The superior pancreatic odenal artery ideally divides into an anterior division and a posterior division, but in this case, we can see only the anterior division and instead, there's a separate superior pancreatic odenal artery posterior division coming from the gastro-oimental artery and both these, the anterior and the posterior superior pancreatic odenal runs along the diurnal and the pancreatic junction and it supplies both the head of the pancreas as well as the diurnal both from the front and from the back. Now, let's come to the next set of vessels. We can see the superior miscentric vein to the right of the superior miscentric artery and both the superior miscentric vein and artery they are running in front of the third part of the diurnal. The superior miscentric artery gives rise to the inferior pancreatic odenal and this divides again into an anterior branch and a posterior branch. So, the inferior pancreatic odenal anastomosis with the branches of the superior pancreatic odenal and this loop of blood vessel supplies both the head of the pancreas as well as the sea loop of the diurnal. The next point I wanted to mention was this superior miscentric artery as we can see is running in front of the third part of the diurnal and this is a potential site of compression where it can produce a diurnal compression syndrome. So, these are the branches of the hepatic artery as well as other branches of the celiac trunk which supplies the esophagus, abdominal part, the stomach and the diurnal. Thank you very much for watching. Ladies and gentlemen, if you have any questions or comments please put them in the comment section below. Dr. Sanjay Sanyal signing out. Thank you guys for watching. We share likes with you and click the subscribe button.