 Okay, so we're looking at the heart here We're gonna look at the major arteries and veins of the heart itself So I've already removed off the top My aorta is my pulmonary arteries and veins there and the superior vena cava to take that off So that we can see down So this is my aorta where it first comes out of my left ventricle And we can see it has two branches one that wraps around this way and one that wraps around this way Those are my coronary arteries. So you have a left and a right coronary artery So let's follow first the left one. So is it wraps around this way? It's got two branches one that goes and wraps around the left Atrium that's your circumflex artery and One that comes down the middle here in between the two ventricles. This is my anterior Interventricular artery. Okay, so interventricular between ventricles and it's on the anterior side If we look at the veins immediately next to it so we see this one vein here It's right next to our anterior interventricular artery This is called the great cardiac vein. You can see it comes all the way up. It kind of wraps around Where the circumflex artery is and follows it again around the left atrium Let's look at the right coronary artery. So it comes off the aorta there and wraps around down We can see there's some marginal arteries branch off here You also have the adjacent veins next to it. These are our small cardiac veins So that's on the front now let's look at the posterior side of the heart so Reorient ourselves here. This is the circumflex artery wrapping around The great cardiac vein Immediately adjacent to it again wrapping around until it gets to this region right here where it begins to swell This is the coronary sinus Okay Corner sinus is the swollen part and branching down from it is the middle Cardiac vein which is immediately next to the posterior intraventricular artery