
organ systems
Organ systems are groups of organs working together to perform specific functions essential for survival and health. For example, the circulatory system includes the heart and blood vessels, transporting blood, oxygen, and nutrients throughout the body. The respiratory system involves the lungs and airways, enabling breathing and oxygen exchange. The digestive system processes food, absorbs nutrients, and removes waste through organs like the stomach and intestines. Each system has a specific role, and they all interconnect to maintain overall body balance, allowing us to function, recover, and stay healthy.