So when the left ventricle of the heart contracts, it pumps all that blood into the largest artery of the body known as our aorter. Now we have different segments of the aorta and the segment of the aorta that actually extends from the left ventricle and moves upward is known as our ascending an order. And this is shown in red as it travels right over to this location here. Now at the beginning portion of our ascending A order, we have branching taking place and we form two smaller arteries given by one A. So these arteries right here are the left and the right coronary arteries. And these bring oxygenated and nutrient filled blood to the cells of our heart.