What are the four segments of the aorta?

The four segments of the aorta are accurately described as ascending, arch, descending, and abdominal. This classification captures the main divisions of the aorta as it travels from the heart and branches out to supply blood to the body.

The ascending aorta is the portion that rises directly from the heart (left ventricle) and carries oxygenated blood upwards. The arch of the aorta is the curved portion that connects the ascending aorta to the descending aorta and gives rise to several major arteries that supply the head, neck, and arms. The descending aorta continues downward from the arch; it is divided into the thoracic aorta, which passes through the chest cavity, and the abdominal aorta, which descends into the abdominal cavity.

This particular answer captures the full anatomical pathway and divisions of the aorta, which is crucial for understanding cardiovascular physiology and the flow of blood within the body. Other options do not accurately represent all segments or divide them in a way that aligns with standard anatomical terminology.