No playing sports. No eating his favorite foods. And in nearly a decade on the transplant list, no luck getting an organ. Then, last spring, his doctor called. There was a perfect match.

It's made up of a complicated network of cells and organs. It protects the body from infection, cancer, and other conditions. Lymph nodes are part of the immune system. They send out lymphocytes.

A breakthrough in bioprinting of living tissues could soon lead to 3D-printing of blood vessels and human organs, ushering in a new era of regenerative medicine. Guohao Dai, a bioengineering ...

Human brains contain higher concentrations of microplastics than other organs, according to a new study, and the amount appears to be increasing over time. In the study, published in early ...

The ears are a pair of sensory organs whose primary functions are hearing and balance. They are divided into three portions: the outer ear, the middle ear, and the inner ear. Each has an intricate ...