That would be the Carotid arteries.
coronary arteries
The aorta
All systemic blood vessels branch from the aorta, which is the largest artery in the body. The aorta originates from the left ventricle of the heart and ascends before arching and descending through the thorax and abdomen. As it travels, the aorta gives rise to various major arteries that supply blood to different regions of the body. Ultimately, these arteries branch into smaller vessels, including arterioles and capillaries, facilitating blood flow to tissues and organs.
The reason it is important that they be the first to leave the aorta is that the arteries are much thicker than veins and can handle the pressure the heart uses to push blood through the body.
Nutrients and oxygen have to get to the outside of the heart. So the blood vessels on the outside have that job. The nutrients and oxygen can't get to the cardiac muscle from inside the heart. Blood vessels that lead from the heart that are high in oxygen and nutrients have their first branch off the aorta that goes to these blood vessels. That's how important these vessels are to the heart and how it functions.
The Aorta
The arteries, which are strong, flexible, and resilient, carry blood away from the heart and bear the highest blood pressures THE AORTA...IT THE FIRST "MAJOR" ARTERY THAT LEAVES THE HEART. 2nd would be the Pulmonary Veins (reversed arteries-veins) in the Respiratory system.
There are 2 blood vessels the Aorta and the Pulmonary Artery
its called the aorta
The abdominal aorta carries blood from the heart to the kidneys.
Ascending Aorta
aorta.