A function of the circulatory system is

A function of the circulatory system is

• A. Transportation of nutrients, blood cells, gases, etc.
• B. Respiration for the body
• C. Urination of waste products
• D. Protection of the body

Answer: (A)

The circulatory system’s main job is to move substances throughout the body. It carries nutrients absorbed from the digestive tract to all tissues, transports oxygen from the lungs to living cells, and then returns carbon dioxide and other wastes to organs responsible for elimination. It also circulating immune cells and clotting factors, helping defend against disease and injury, and helps distribute heat to help regulate body temperature. Gas exchange, or respiration, is performed by the respiratory system, though the circulatory system works with it by delivering the oxygen and removing the carbon dioxide that the lungs exchange. Urination is handled by the urinary system, and while the circulatory system supports protection by circulating immune components, its defining role is transport. That’s why transporting nutrients, blood cells, gases, and related substances best describes its function.

The circulatory system’s main job is to move substances throughout the body. It carries nutrients absorbed from the digestive tract to all tissues, transports oxygen from the lungs to living cells, and then returns carbon dioxide and other wastes to organs responsible for elimination. It also circulating immune cells and clotting factors, helping defend against disease and injury, and helps distribute heat to help regulate body temperature.

Gas exchange, or respiration, is performed by the respiratory system, though the circulatory system works with it by delivering the oxygen and removing the carbon dioxide that the lungs exchange. Urination is handled by the urinary system, and while the circulatory system supports protection by circulating immune components, its defining role is transport. That’s why transporting nutrients, blood cells, gases, and related substances best describes its function.