What body system is the most important

Mechanical support, posture and locomotion.It is responsible for carrying oxygen and vital nutrients to all parts of the body and removes harmful waste products from tissues.Diagram of the human cardiovascular system.Body systems are groups of organs and tissues that work together to perform important jobs for the body.From voluntary actions to involuntary.

The nervous system comprises of the brain, the spinal cord and the entire network of nerves that run through our body.