1. The heart pumps blood.
2. The ureter carries urine from the kidney to the bladder temporarily.
3. The aorta is the major artery that gives oxygenated blood to other arteries in the body.
4. The function of the circulatory system is to transport blood, which contains oxygen, nutrients, and waste products, throughout the body to maintain cellular function and homeostasis. The circulatory system also helps to regulate body temperature and immune function.