 Now, let's take a look at the pancreas itself. Pancreas is highly necrotic, so therefore we cannot make out much of it But what we can see are the clinic artery and the splenic vein behind So let's take a look at the vessels of the pancreas. This is the opening, the cut portion of the splenic artery The splenic artery runs in a very tortuous fashion along the superior border of the pancreas And we can see it is running here. The reason for its tortuosity is because it forms a bit of a stomach And this tortuosity allows for movement of the stomach The splenic artery then enters into the spleen along with the tail of the pancreas through the hilum And they are located in the splino renal ligament which has been removed It supplies not only the spleen but it also gives these branches And we can see one branch here, we can see another branch here, we can see another branch here These other branches, they are called the vasabrivia We supplies the fundus in the greater curvature of the stomach near its upper part And they run in the gastro-splenic ligament and it also gives this branch here This is the left gastroepiploid artery which also runs in the gastro-splenic ligament And then it runs in the greater momentum and supplies the stomach greater curvature from the left side So this is about the splenic artery. Now I will turn the pancreas And when I turn it, we can see this structure here This is the splenic vein. The splenic vein runs behind the pancreas And it unites at the neck of the pancreas with this structure here This is the supramacentric vein And at the point of union which is occurring behind the neck of the pancreas It forms the portal vein We can see the cut portion of the portal vein here The portal vein runs behind the neck of the pancreas And it comes up and then it runs in the extra hepatic portal triad along with the common bile duct This portal vein as we can clearly see here, if I lift up the neck of the pancreas We can see it is formed by the union of the supramacentric vein and the splenic vein Now let's take a look at the spleen. As I mentioned we have completely eviscerated the spleen now So let's take a gross look at the spleen. The spleen has got this surface which is the diaphragmatic or the costal surface And this is the visceral surface. It has got three borders, a superior border and inferior border and anterior border The superior border is denoted by these notches This is how we recognize a spleen when we are clinically palpating an enlarged spleen by its notched superior border Just under the superior border, this surface that we see here, this is referred to as the gastric area Because this is referred to as the fundus of the stomach Coming to the inferior border, this is the inferior border. Just above that this region is referred to as the renal area Because it is related to the left kidney, which is here and this is the anterior border And just behind the anterior border, this area is referred to as the colic area Because it is related to the spenic flexure of the colon Now I shall draw your attention to this whole region is the hyalum of the spleen But the hyalum of the spleen if you look closely is subdivided into two components You can see a cut portion of peritoneum here This is the cut margin of the gastro spleenic ligament which is attached to the hyalum Below that we can see another structure here This is the cut margin of the spleenorenal ligament Both of them enter through the hyalum of the spleen. They have different structures within each of them The gastro spleenic ligament contains the vasabrivia We can see a branch from the spleenic artery which supply the greater curvature and near the fundus of the stomach There are not one but there are many vasabrivia Vasabrivia means small or short gastric vessels which are both arteries and veins Also running through the gastro spleenic ligament we have this Which is also a branch of the spleenic artery. This is the left gastrofibloic Running through the spleenorenal ligament we have these two structures One of them is the tail of the pancreas and the other is the main spleenic artery There is an important clinical correlation here whenever there is an injury to the spleen Or any surgery of the spleen the tail of the pancreas is quite likely to get injured Because of its anatomical proximity to the hyalum of the spleen Let's come to the costal of the diaphragmatic surface of the spleen We see these three impressions here. We can see one impression here We can see another impression here and we can see a third impression here These are the costal markings or the rib markings And these are the ninth, tenth and eleventh ribs Here again we have a very important clinical correlation Fracture of the left lower ninth, tenth, eleventh ribs We must assume spleenic injury unless proved otherwise This is a very important surgical dictum The spleen is covered by visceral plutonium and under that there is a capsule of the spleen It is said that we have the spleenic sinusoid When we cut open the spleen we shall be able to see that So my assistants have done a wonderful job of cutting open the spleen What we see here is the capsule of the spleen This is a normal portion of the spleen that we have cut open here And if we were to take a close look we see that this margin This is the spleenic capsule and inside that is the red pulp Which is filled with sinusoids and we cannot see very clearly But these will also contain the spleenic trabeculae Inside the trabeculae will be the venous of the spleen And inside the red pulp which contains the spleenic sinusoids Will be the arterios And this is what acts as a spleenic reservoir of temporary collection of blood We have made another cut in this area of the spleen Where the consistency of the spleen is distinctly different from the rest of the spleen And we can see it is very soft and mushy And when we cut this open we see the red pulp But here the red pulp is very soft As compared to the normal area So this is perhaps a place where this cadaver during life May have sustained a blunt trauma to his lower chest left side Which would have produced this softness of the spleen in this area So these are the few salient points about the spleen The pancreas, the spleenic artery, spleenic vein and the portal vein