 So this is going to be a demonstration of the liver now that brings me to the lymphatic drainage of the liver So for that, I'll have to put back the liver again in its normal location The lymphatic drainage of the liver is closely related to the lymphatic drainage of the diaphragm So we shall divide the lymphatic drainage into three parts the anterior superior surface the posterior superior surface including the very area of the liver and the Inferior surface the anterior superior surface both superficial and deep they all drain first into the anterior diaphragmatic lymph nodes and from there they go into the Parastinal lymph nodes the posterior superior lymphatics both superficial and deep they go through the barrier of the liver and they go through the diaphragm and They go to the posterior media standard lymph nodes, especially on the right side and both these sets of lymphatics in the thorax Continue as the bronchomedias from the trunk the lymphatics from the inferior surface of the visceral surface of the liver They all drain into the first into the lymph nodes around the portahepatus from there they go to the Omental foramine nodes and Then they go to the Serial nodes and they communicate with the cystic nodes, which actually show a little later So this is about the lymphatic drainage of the liver, which is closely related to the lymphatic drainage of the diaphragm Now we have turned the liver and we are showing the Inferior or the visceral surface of the liver and let us take a look at what are the important structures that we can see here We can see this structure here. This is the cut remnant of the inferior vena cable And my instrument has come gone completely through it. This was filled with glottis blood This group that we see here This is the Fossa for the gallbladder in this particular cadaver the gallbladder has been removed Colossusctomy has been done and we can see this is the remnant of the cystic duct and we can see the clip here Where they have inserted the clip on the cystic duct Next we can see This structures in the portahepatus the portahepatus is the region of the liver Where the structures enter and leave the liver since we have reversed it now the orientation has changed That posterior has become anterior and vice versa Let's take a look at the structures that we can see in front of us in the order that we can see them This structure that we have lifted up here. This is the portal way Next after that behind that is the hepatic artery proper and There's an apparent hepatic artery, which I shall mention just now and the third structure that we can see here This is the hepatic duct Normally, this would have been the other way round. So these three structures together Constituted the extra hepatic portal triad. So let's take them one by one The portal vein which is formed by the union of the superior mystery queen and the spleenic vein behind the neck of the pancreas This enters the portahepatus We have completely dissected out the Branches of portal vein in the portahepatus and we can clearly see that this is the right branch of the portal vein And this is the left branch of the portal vein entering Respectively to the right anatomical lobe and the left anatomical lobe and thereafter it will ramify even further Deep inside the liver and it will keep on ramifying To virtually an unlimited extent The left branch of the portal vein Receives the communication from the parambillical veins which are present in the falsiform ligament Which and we can see some of the remnants of the parambillical veins in the falsiform ligament and therefore they constitute a site of portal systemic anastomosis Now we shall retract the portal vein up to show the next structure This is the hepatic artery proper Now in this case we see that the hepatic artery proper is not one but three And all these three are entering into the portahepatus This is the place where the common hepatic artery makes an upward curve and Arising from the place where it makes a curve is this remnant of the artery that we can see here This is the gastrodural artery After the common hepatic artery gives out the gastrodural artery Then the artery continues up as the hepatic artery proper and it enters into the portahepatus And from the hepatic artery proper we can see this artery coming out here This is the remnant of the right gastric artery which runs in the Lesser curvature of the stomach from the right to the left. We see it one more structure here and We can see a clip is attached here This is this remnant of the cystic artery which comes from the right hepatic artery And in this case since the coelasticity has already been done We can see the clip on the cystic artery. So these are the hepatic artery branches which are entering into the portahepatus In this connection, I would like to draw your attention to this unique situation here We have lifted up yet another artery here This is an aberrant or a variant or an accessory right hepatic artery Which is entering into the right anatomical lobe of the liver completely separate from the main hepatic artery This was arising from the Superior mesentric artery. We have removed the liver away just to show you the superior mesentric artery This is the superior mesentric artery and we can see this branch coming out much before the First normal first branch on the superior mesentric artery, which is the inferior pancreatic odenol and the middle coaling This was that aberrant right hepatic artery Which was going all the way across like this where my instrument is tracing and it was entering like this into the Right anatomical lobe of the liver from its inferior surface And that is what we see in this specimen here And I've brought back the specimen again in the field of view to show the right hepatic artery The aberrant right hepatic artery This is when documented in the textbooks and in the literature Some patients do have an aberrant right hepatic artery coming out from the superior mesentric artery So that's about the next structure entering the portahepatus and I have retracted that also and then we can see the third structure This is the common hepatic duct the common hepatic duct is formed by union of the Right and the left hepatic duct and we can see the right hepatic duct here And the left hepatic duct here and they form the common hepatic duct the common hepatic duct then meets with the Cystic duct after that it becomes known as the common bile duct In this case since we have only mentioned the patient had undergone Cholocystectomy, we can see that the cystic duct has also been clipped here and we can see that clip here So therefore this is the first up of the gallbladder, which is empty because this is where the gallbladder was located And this is the remnant of the common bile duct which continues in the hepatodeodontal ligament These three structures, which I described just now They are the parts of the extra hepatic portal tribe and in normal life These three are completely enclosed by a double fold of petroleum, which is referred to as the hepatodeodontal ligament This hepatodeodontal ligament is the right free margin of the lesser momentum Of this hepatodeodontal ligament they get attached to the margins of the portahepatus So therefore the portahepatus itself is Without any peritoneum only the margins have got attachment behind this structure where my finger is located In normal life is the entry to the epiploid foramen or the empomental foramen or bin slow Which leads into the lesser side If you take a look at the orientation of the portahepatus the portahepatus is approximately And this is the fissure for the ligament of venosum, which is approximately longitudinal So therefore the fissure for the ligament of venosum and the portahepatus they make a somewhat L shape The reason why I'm mentioning it is because The fissure for the ligament of venosum Receives the rest of the lesser momentum part of which we have picked up here And that is the hepatogastric ligament So therefore the hepatogastric ligament which is coming out from the lesser coverage of the stomach Goes to the fissure for the ligament of venosum. It is located more in Plane where it has got a right leaf and a left leaf It is more located in a sagittal plane While the hepatodeutonal ligament which is the right component of the lesser momentum Is in a transverse axis and which gets attached to the margins of the portahepatus So that was the second part of the dissection of the liver Stay tuned for the third part of the dissection of the liver. We shall mention the surgical segments