OC Model:Ghost

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The human body is a highly complex and intricate system that functions as a single unit. It consists of trillions of cells, each working together to maintain life. The nervous system, which includes the brain and spinal cord, serves as the control center, sending and receiving signals throughout the body. The heart pumps blood through a network of blood vessels, supplying oxygen and nutrients to every cell. Organs such as the liver, kidneys, and lungs perform specific functions that are vital for survival. The human immune system protects against disease-causing microorganisms by producing antibodies and activating white blood cells.