Medically reviewed by Michael Menna, DO Key Takeaways The circulatory system carries oxygen and nutrients throughout the body and removes waste.The lymphatic system helps fight disease by creating and ...

For generations, medical students were taught that the map of the human body was essentially complete. Yet cancer imaging has ...

An organ is a group of tissues that work together to perform a specific task in the body, such as digesting nutrients or producing chemical messengers that enable brain cells to communicate. Although ...

When it’s time to bring new life into the world, the human body transforms itself in remarkable ways. The immune system, which usually fights off anything that reads as foreign, learns to chill out so ...