The immune cell repertoire is composed of many different cell types that are orchestrated in response to infection and other pathogens that enter the body. As a result, the body can defend itself ...

The human small intestine absorbs nutrients while protecting us from potentially harmful microbes. One of the cell types that plays a key role in this protection is the microfold cell, or M cell.

Cells manage a wide range of functions in their tiny package — growing, moving, housekeeping, and so on — and most of those functions require energy. But how do cells get this energy in the first ...

T cells, also known as T lymphocytes, are the immune cells that drive the cellular immune response. There are several different types of T cells, each playing a distinct role. The functions of T cells ...

Teeth function not only because of the hard enamel on the surface, but also because they have roots that anchor them firmly in the jawbone beneath the gums. Eating, speaking, and maintaining the shape ...