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The human body is a complex system of interconnected parts that work together to maintain homeostasis and overall health. The brain, which is often referred to as the control center of the body, sends signals through the nervous system to various organs and tissues throughout the body, allowing for coordinated movement, sensation, and function. The heart pumps blood throughout the body, supplying oxygen and nutrients to cells and removing waste products. This vital organ beats around 100,000 times per day, pumping over 2,000 gallons of blood in the process. The lungs take in oxygen from the air we breathe and expel carbon dioxide through exhalation. The digestive system breaks down food into smaller molecules that can be absorbed and utilized by the body for energy and growth. The liver filters toxins from the bloodstream, while the kidneys filter waste and excess fluids from the blood, producing urine as a result.