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 ...

Researchers have made a giant leap towards the goal of 'bio-printing' transplantable tissues and organs for people affected by major diseases and trauma injuries, a new study reports. Scientists have ...

While organ donations have traditionally come from dying patients who have a heartbeat but are considered brain dead, organs can also be harvested after circulatory death, when the heart and ...