Which body system has organs that are necessary for breathing

The diaphragm

Explanation:which separates the chest from the abdomen, plays a very important role in breathing. It moves downward when we inhale, increasing the capacity of the chest cavity when we breathe in through our nose and mouthI hope that helps you

the endocrine system secretes hormones into blood and other body fluids. these chemicals are important for metabolism, growth, water and mineral balance, and the response to stress. hormones provide feedback to the brain to affect neural processing. reproductive hormones affect the development of the nervous system.