Boomer

sketchfab

The human body is made up of many different systems that work together to keep us alive and healthy. The nervous system sends messages to the brain, which then controls all the other systems. It's like a big team effort, with each system doing its part to help us function properly. The circulatory system delivers oxygen and nutrients to our cells, while the digestive system breaks down food into energy that we can use. Our immune system fights off infections and diseases, keeping us safe from harm.