Over the past decade, researchers at RIKEN Center for Developmental Biology in Japan have generated complex tissues, including mouse retinas and Purkinje cells (a type of neuron) that integrated ...

The exact role of a tissue in an organism depends on what types of cells it contains. For example, the endothelial tissue that lines the human gastrointestinal tract consists of several cell types.

Its complex network of cells, organs, proteins, and tissues enables the immune system ... they begin to multiply and send signals to other cell types to do the same. The lymphatic system forms ...