 This is a supine cadver. I am demonstrating from the right side the camera person is on the left side This structure that we see in front of us This is the inferior vena keba and this structure is the arrow The other as we know is to the left of the inferior vena keba. Let's take a look at the extent of the order This is the aortic hiatus where my instrument is pointing right now This is at the level of T12 and the order divides into the two common idea gotries at the level of l4 So T12 to l4 is the extent of the order now Let's take a look at the branches of the order the branches are divided into what I was the vascular plane concept What is this vascular plane concept? We have three unpaired visceral branches. This is the first one This is the celiac trunk, which is coming out the level of T12 the next one. This is the superior mass intrigue Coming out the level of l1 and This is the inferior mass intrigue at the level of a3. So these are three unpaired visceral branches The celiac trunk supplies the foregut Supermass intrigue supplies the midgut and the inferior mass intrigue supplies the hindgut The inferior mass intrigue continues into the pelvis as the superior rectal artery and we can see that and it supplies the rectum The next set of branches are the paired visceral branches. The first set of branches are this This one here, which I have lifted up and this one These are the renal arteries in this particular cadaver There are not one but two separate distinct renal arteries coming from the outer The first set are the ones which I lifted up just now They are supposed to come out at the level of approximately the level of l1 But in this particular cadaver we see yet one more artery coming from the outer on this side as well as on this side And they are coming separately and they're entering into the kidney on both the sides So that is the first set of paired visceral branches. The next set of paired visceral branches are this one here This is the left testicular artery And this is the right testicular artery, which comes out at the level of approximately l2 The next paired visceral branch we can see only on the right side this one here, which I have lifted up This is the right supra renal artery. We do not see the left supra renal artery The supra renal glands as we know receives branches from many sources One of them is from the aorta and that is what we see here So these are the paired visceral branches. The next set of branches are the paired parietal branches The first set of paired parietal branches are the inferior phrenic arteries Which we cannot see because we have to remove the fascia and the liver The next set is the subcostal artery which goes below the 12th rib That also we cannot see this dissection What we can see are the four lumbar arteries to see that Let me push the aorta here and we can see the branches coming from the aorta These are the lumbar arteries on the right side and when I pull on this side, we can see branches going on this side also So these are the lumbar arteries and they are the ones we supply the posterior terminal wall So these are the paired parietal branches Now let me mention some clinical correlations pertaining to the aorta One of the important clinical correlation is aneurysm of the abdominal aorta Which is usually a result of atherosclerotic damage to the tunica media The aneurysm, if it does occur, it occurs usually between the origin of the renal artery and the bifurcation of the aorta into the two common iliacs So this is the location of the aneurysm of the abdominal aorta In which case the inferior eccentric artery arises from the apex of the aneurysm When a patient has an aneurysm of the abdominal aorta, it produces an expand-style pulsation Sometimes which can be not only fed but can also be seen on the anterior terminal wall, especially if the person is thin If an aneurysm has seen by ultrasound, if the diameter of the aneurysm is more than six centimeters It is more likely to rupture, so therefore we have to treat it before it ruptures Because after rupture, mortality rate increases exponentially In a thin person, we can normally feel the pulsation of the abdominal aorta at this level Where my finger is located, we can feel it against the L4 lumbar vertebra Where the lumbar vertebra forms a normal lortotic curve In elderly person or as the age advances, there can be calcification of the tunica media And we can feel an axial crackling, which we can feel, and we can feel a little bit here also That is known as Monkeberg's medial calcific sclerosis This is a planing strip of the abdomen to show Monkeberg's medial calcific sclerosis of the abdominal aorta and the iliacs Superbocentric artery, as it crosses over the left renal vein, it can compress the left renal vein And also in a male, the left gonadal testicular vein and produce what is known as the left renal vein Entrapments in Rome and left testicular varicose Let me mention some clinical applications of the abdominal aorta The applications pertain to autogram and angiogram The usual route for angiogram is the femoral artery The cannula is inserted through the femoral artery, it goes through the external iliac arteries Goes to the common iliac artery and then it enters into the aorta And after that, under a C-arm, an immediate intensive fire, we can cannulate either the inferior mesentric artery The superior mesentric artery, the celiac trunk and get the respective angiograms This is a selective celiac artery angiogram And this is a superior mesentric angiogram to show the distribution of the vessels We can cannulate the renal arteries and we can get the renal angiogram This is a selective renal artery angiogram to show the segmental renal arteries And not only that, we can continue the cannulation and we can do even coronary angiograms This is a left coronary angiogram to show the left anterior descending and the left circumflex And this is an RCA angiogram to show the right coronary artery So this is a very useful application of the aorta and its angiograms