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Which system controls the circulation of blood and lymph through the body?

  1. Nervous system

  2. Digestive system

  3. Circulatory system

  4. Respiratory system

The correct answer is: Circulatory system

The circulatory system is responsible for the transportation of blood and lymph throughout the body. It consists of the heart, blood vessels, and lymphatic vessels. Blood circulation allows for the delivery of oxygen and nutrients to cells while removing waste products like carbon dioxide. The lymphatic component assists in the removal of toxins and the transportation of immune cells, playing a crucial role in the body's defense mechanisms. This system is vital for maintaining homeostasis, as it regulates body temperature and pH levels. It works in conjunction with other body systems, such as the respiratory system for oxygen exchange, but its primary focus is on blood and lymph circulation. Understanding the function of the circulatory system is essential for anyone training in the field of health and personal care, as it underpins many physiological processes that affect overall well-being.