What are most of the machines in your body?

Most of the "machines" in the human body refer to the various organs and systems that work together to maintain life and health. For instance, the heart pumps blood, the lungs facilitate gas exchange, and the digestive system processes food for energy. Additionally, the nervous system coordinates responses and functions, while muscles enable movement. Together, these systems operate like interconnected machines, each performing specific roles to sustain overall bodily function.