In both humans and fruit flies, the heart's tissues arise from two distinct regions of the embryo, which are initially far apart. As development progresses, these cells journey toward each other, ...

An explanation of how cells make up tissues which in turn make up organs. The diversity of cells in the human body is mentioned. Using muscle cells as an example, it is then explained how cells ...

Its complex network of cells, organs, proteins, and tissues enables the immune system ... (B cells); others travel to the thymus and become T lymphocytes (T cells). These two cell types have ...

A new method seeks specific molecules that can target desired tissues through the bloodstream and penetrate tissues by passing through cells. This innovation could help solve issues related to ...