physiological roles

Physiological roles refer to the functions that different systems and processes in living organisms perform to maintain life and health. For example, the heart pumps blood to supply oxygen and nutrients to cells, while the lungs facilitate breathing, allowing gas exchange. The digestive system breaks down food to provide energy, and hormones regulate various bodily functions, including metabolism and growth. Essentially, each part of the body has a specific job that contributes to overall well-being, working together in a complex and coordinated manner to sustain life.