In humans, the dorsal aorta is a large embryonic artery that develops into the descending aorta, according to LifeMap Discovery. The descending aorta is comprised of the thoracic aorta, which supplies oxygenated blood to... More »

The aorta is a large blood vessel that branches off from the heart and pumps oxygen-rich blood back into the body. The aorta carries blood away from the left ventricle and circulates it into the systemic circuit. The sys... More »

The dorsal fin keeps the perch's body from rolling from side to side and assists the fish in making sudden turns and stops. It plays no role in propulsion. More » Pets & Animals Marine Life Fish

All organisms that are found in the chordata phylum of animals have a dorsal nerve cord at some point in their lives. The dorsal nerve cord is an embryonic feature of chordatas. There are three chordata subphylums: verte... More »

Dorsal fins enable sharks and fish to remain upright as they swim through the water. These fins are vertical and help sharks and fish to balance as they move. In both animals, dorsal fins are located along the spine; mos... More »

An abdominal aortic aneurysm is an enlarged area in the lower portion of the aorta, which is an artery that carries the main supply of blood in the body, explains Mayo Clinic. A major risk of a large aneurysm is rupture ... More » Health Conditions & Diseases

According to WebMD, the main artery in the body is the aorta. It is connected to the left ventricle of the heart. The aorta branches off into a web of numerous smaller arteries that exist all over the body. More »