Schwann cells are the principle glia, which are neuron supports, in the peripheral nervous system. Schwann cells make up what is called the myelin sheath around the axon of the neuron. The function of this sheath is to p... More »

Theodor Schwann, along with fellow scientist Matthias Schleiden, developed the cell theory, which is basically a description of the various parts and functions of plant and animal cells. Schwann and Schleiden developed t... More »

Cell biology is a discipline that views the cell as the fundamental unit of life and studies cell structure and function. It seeks to elucidate properties of cells that are universal to all or most cells as well as uniqu... More »

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Dr. William H. Heidcamp, a professor in the Biology Department at Gustavus Adolphus College, explains that cell differentiation occurs when the structure and function of cells change within a certain period. The formatio... More »

A group of cells that performs a similar function is known as a tissue. Multicellular organisms such as animals all contain differentiated cells that have adapted to perform specific functions. These differentiated cells... More »

Animal cells aren't all shaped the same way; the shape of a specific animal cell depends on its function and where it is in the body. Unlike plant cells, animal cells do not have rigid cell walls that limit them to a rec... More »

Egg cells have adaptations in formation, structure and genetic makeup that enable them to function. Egg cells have similar genetic composition to sperm, but their physical structure and initial formation are unique. More »