Brain tissue. Light micrograph of a section through the grey matter of a normal brain. There are several nerve cell bodies (objects in white areas) surrounded by associated dendrites and supportive glial cells. Some nuclei are visible as darker patches at the centre of the cell bodies. Dendrites, the smaller of the two types of nerve process, act as sensory receptors for the nerve cells. Grey matter in the brain consists of cell bodies, branched dendrites, glial cells and blood vessels. Magnification: x200 at 5x7cm size.